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wifi binding on imx6sl evk based board_81xamx.top

作者：花生_TL007 | 2024-02-29 00:42:55

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81xamx.top

We are having problem with board that is based on imx6sl evk and rtl8192cu (chip on wifi module is RTL8188CTV). The wifi module is on USB interface.
We integrated rtl8192cu driver from another package, we used manual supplied by realtek to integrate there driver into android (from zip fileRTL8188C_8192C_USB_linux_v4.0.2_9000.20130911.zip pdf file \android_ref_codes_JB_4.2\Realtek_Wi-Fi_SDK_for_Android_JB_4_2.pdf).

The driver is build as part of the kernel, not module. We used there's wpa_supplicant, that came with realteks package (wpa_supplicant_8_jb_4.2_rtw_r8680.20130821.tar.gz).

Package is from this site: http://www.realtek.com/downloads/downloadsView.aspx?Langid=2&PFid=48&Level=5&Conn=4&ProdID=277&DownTypeID=3&GetDown=false&Downloads=true

RTL8192CU for Linux/Android

Firmware is from this link: rtl819x - Linux Wireless

Using serial interface terminal, we tested the wlan0 interface, we can bring it up, and get ip number:

root@evk_6sl:/ # cat /sys/kernel/debug/usb/devices

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0

D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1

P: Vendor=0bda ProdID=8176 Rev= 2.00

S: Manufacturer=Realtek

S: Product=802.11n WLAN Adapter

S: SerialNumber=00e04c000001

C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA

I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu

E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=125us

root@evk_6sl:/ # dhcpcd wlan0

dhcpcd[2859]: version 5.5.6 start+871x_drv - drv_open, bup=0

===> FirmwareDownload91C() fw:Rtl819XFwImageArray_UMC_B

FirmwareDownload92C accquire FW from embedded image

fw_ver=v80, fw_subver=0, sig=0x88c0

fw download ok!

Set RF Chip ID to RF_6052 and RF type to 1T1R.

IQK:Start!!!

Path A IQK Success!!

IQK: final_candidate is 0

IQK: RegE94=103 RegE9C=f RegEA4=fb RegEAC=5 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0

Path A IQ Calibration Success !

pdmpriv->TxPowerTrackControl = 1

MAC Address from REG_MACID = 44:33:4c:8b:f2:10

rtl8192cu_hal_init in 610ms

MAC Address = 44:33:4c:8b:f2:10

-871x_drv - drv_open, bup=1

ADDRCONF(NETDEV_UP): wlan0: link is not ready

dhcpcd[2859]: wlan0: checking for 169.254.169.141

dhcpcd[2859]: wlan0: using IPv4LL address 169.254.169.141

dhcpcd[2859]: forked to background, child pid 2885

root@evk_6sl:/ # ifconfig wlan0

wlan0: ip 169.254.169.141 mask 255.255.0.0 flags [up broadcast running multicast]

root@evk_6sl:/ # netcfg

lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00

eth0 UP 192.168.0.152/24 0x00001043 24:80:00:00:00:00

tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

wlan0 UP 169.254.169.141/16 0x00001043 44:33:4c:8b:f2:10

We need to use dhcpcd wlan0 command, the suggested init.rs service doesn't work, but thats not the problem.

Our problem is that binding from android ui and kernel isnt working.

When we tried to turn on wifi, from Settings>Wifi in Android UI, the slider button can move and change to On state, but the message on display "To see available networks, turn WiFi on" is still there.

in logcat we get:

D/WifiService( 2363): setWifiEnabled: true pid=2363, uid=1000

After that we can't move slider back.

When we exit that menu and return, the slider is back in Off state.

Using wifi from shell, we can get all the other wifi networks:

root@evk_6sl:/data # ./xbin/iwlist wlan0 scanning

survey done event(18)

wlan0 Scan completed :

Cell 01 - Address: BC:AE:C5:C4:3B:F7

ESSID:"Automatic"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.412 GHz (Channel 1)

Encryption key:on

Bit Rates:54 Mb/s

Quality=59/100 Signal level=-95 dBm

Cell 02 - Address: 68:7F:74:01:C6:BE

ESSID:""

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.432 GHz (Channel 5)

Encryption key:off

Bit Rates:54 Mb/s

Quality=100/100 Signal level=-55 dBm

Cell 03 - Address: 20:AA:4B:1B:A1:7C

ESSID:"TEST"

Protocol:IEEE 802.11bgn

Mode:Master

Frequency:2.437 GHz (Channel 6)

Encryption key:off

Bit Rates:144 Mb/s

IE: Unknown: DD750050F204104A0001101044000102103B0001031047001020AA4B1BA17A20AA4B1BA17A022AC107102100104C696E6B73797320627920436973636F102300085752543136304E4C1024000776312E302E303210420001351054000800060050F2040001101100085752543136304E4C100800020084

Quality=100/100 Signal level=-71 dBm

Cell 04 - Address: 00:1D:7E:BD:10:05

ESSID:"alt02"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.457 GHz (Channel 10)

Encryption key:on

Bit Rates:54 Mb/s

Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f2020c00

IE: WPA Version 1

Group Cipher : TKIP

Pairwise Ciphers (1) : TKIP

Authentication Suites (1) : PSK

Quality=100/100 Signal level=-74 dBm

Cell 05 - Address: 00:18:F8:3B:F1:0A

ESSID:"alt1"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.462 GHz (Channel 11)

Encryption key:on

Bit Rates:54 Mb/s

Quality=101/100 Signal level=-95 dBm

We also added permissions for wifi in android ..

Please, ask me if you need more details, I kept track of all the changed done in the android and kernel.

Logcat with DBG for classes in wifi is also available.

Does anyone have any idea about this problem? Could you help us, please? We wasted a lot of time on this.

正确答案作者： Zoran Lukic 开启 2014-5-28 上午6:52

Yes, we manage to get wifi working. Here are info's in more detail, so if anybody else has problem ...

We build driver as part of the kernel:

vim kernel_imx/arch/arm/configs/imx6s_{yourdevice}_android_defconfig

CONFIG_CFG80211=y

CONFIG_MAC80211_MESH=y

CONFIG_MAC80211=y

CONFIG_HOSTAP=y

CONFIG_RTL8192CU=y

CONFIG_RTLWIFI=y

CONFIG_RTL8192C_COMMON=y

#CONFIG_RTL8723AS=m

CONFIG_USB_USBNET=y

CONFIG_NET_RADIO=y

vim device/fsl/{yourdevice}/BoardConfig.mk

BOARD_WIFI_VENDOR := realtek

WPA_SUPPLICANT_VERSION := VER_0_8_X

CONFIG_DRIVER_NL80211 := true

BOARD_WPA_SUPPLICANT_DRIVER := NL80211

BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_rtl

BOARD_HOSTAPD_DRIVER := NL80211

BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl

BOARD_WLAN_DEVICE := rtl8192cu

WIFI_DRIVER_MODULE_NAME := "wlan0"

WIFI_DRIVER_MODULE_PATH := ""

WIFI_DRIVER_MODULE_ARG := ""

WIFI_FIRMWARE_LOADER := ""

WIFI_DRIVER_FW_PATH_STA := ""

WIFI_DRIVER_FW_PATH_AP := ""

WIFI_DRIVER_FW_PATH_P2P := ""

WIFI_DRIVER_FW_PATH_PARAM := ""

We disabled p2p, since we dont need it:

vim device/fsl/imx6/{yourboard}.mk

PRODUCT_COPY_FILES += \

#frameworks/native/data/etc/android.hardware.wifi.direct.xml:system/etc/permissions/android.hardware.wifi.direct.xml

rm out/target/product/{yourboard}/system/etc/permissions/android.hardware.wifi.direct.xml

or just remount system partition:

root@{yourboard}:/ # mount -o remount, rw /system;

and remove xml:

root@{yourboard}:/ # rm /system/etc/permissions/android.hardware.wifi.direct.xml

edit:

root@{yourboard}:/ # busybox vi system/etc/permissions/required_hardware.xml

vim device/fsl/{yourboard}/required_hardware.xml

vim out/target/product/{yourboard}/system/etc/permissions/required_hardware.xml

<!--

-->

If you use it as module, you will need to add it also in PRODUCT_COPY_FILES

You need to correct init scripts, leave just this lines:

(this is from: http://blog.linuxconsulting.ro/2010/04/porting-wifi-drivers-to-android.html )

You can do it directly to out folder:

vim out/target/product/{yourboard}/root/init.rc

or/and (rebuild the whole system):

vim device/fsl/imx6/imx6.mk

mkdir /system/etc/wifi 0770 wifi wifi

chmod 0770 /system/etc/wifi

chmod 0660 /system/etc/wifi/wpa_supplicant.conf

chown wifi wifi /system/etc/wifi/wpa_supplicant.conf

#wpa_supplicant control socket for android wifi.c (android private socket)

mkdir /data/misc/wifi 0770 wifi wifi

mkdir /data/misc/wifi/sockets 0770 wifi wifi

chmod 0770 /data/misc/wifi

chmod 0660 /data/misc/wifi/wpa_supplicant.conf

chown wifi wifi /data/misc/wifi

chown wifi wifi /data/misc/wifi/wpa_supplicant.conf

setprop wifi.interface wlan0

setprop wlan.driver.status "ok"

#setprop wifi.ap.interface wlan0

#and also remove this lines:

# mkdir /data/system/wpa_supplicant 0771 wifi wifi

# chmod 0771 /data/system/wpa_supplicant

# symlink /data/misc/wifi/wpa_supplicant /data/system/wpa_supplicant

you can read it in that blog link, about unix/android standard socket setup.

vim out/target/product/{yourboard}/root/init.freescale.rc

or/and

vim device/fsl/{yourboard}/init.rc

#this is the only supplicant service and dhcpcd service for wifi that we use:

service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \

-c/data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 660 wifi wifi

class main

disabled

oneshot

service dhcpcd_wlan0 /system/bin/dhcpcd -aABKL

class main

disabled

oneshot

service iprenew_wlan0 /system/bin/dhcpcd -n

class main

disabled

oneshot

To keep it clean (it doesnt effect wifi):

vim device/fsl/imx6/imx6.mk

PRODUCT_PACKAGES += \

rtw_suppl \

We needed to make a little change in wifi_realtek.c since our jb is 4.3:

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

int wifi_start_supplicant(int p2p_supported)

wifi_stop_supplicant(p2p_supported);

….

int wifi_stop_supplicant(int p2p_supported){

char supp_status[PROPERTY_VALUE_MAX] = {'\0'};

int count = 50; /* wait at most 5 seconds for completion */

if (p2p_supported) {

property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);

} else {

property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);

}

Our problem was wrong supplicant name in prop setup. And, when wifi starts it first stops supplicant, and it wasn’t able to transfer that info through system. It was quite fun tracking this problem.

vim ./frameworks/base/wifi/java/android/net/wifi/WifiStateMachine.java

mWifiNative.killSupplicant(mP2pSupported);

if(mWifiNative.startSupplicant(mP2pSupported)) {

setWifiState(WIFI_STATE_ENABLING);

if (DBG) log("Supplicant start successful");

mWifiMonitor.startMonitoring();

transitionTo(mSupplicantStartingState);

} else {

loge("Failed to start supplicant!!");

}

Here are more info:

root@{yourdevice}:/ # cat /data/misc/wifi/wpa_supplicant.conf

ctrl_interface=wlan0

update_config=1

device_name={yourdevice}

manufacturer=Freescale

model_name={YOURDEVICE}

model_number={YOURDEVICE}

serial_number=

device_type=10-0050F204-5

config_methods=physical_display virtual_push_button

network={

ssid="XXXXX"

key_mgmt=NONE

priority=1

}

and it started with:

root@{yourdevice}:/ # cat system/etc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

permissions:

root@{yourdevice}:/ # ls -l /data/misc/wifi

-rw-rw---- system wifi 21 2014-05-27 12:39 entropy.bin

drwxrwx--- wifi wifi 2014-05-27 12:39 sockets

-rw------- system system 33 2014-05-27 12:39 softap.conf

-rw-rw---- wifi wifi 272 2014-05-27 12:39 wpa_supplicant.conf

root@{yourboard}:/ # ls -l /data/misc/

drwxr-s--- system shell 2014-05-27 12:39 adb

drwxrwx--- bluetooth net_bt_stack 2014-05-27 12:39 bluedroid

drwxrwx--- system system 2014-05-27 12:39 bluetooth

drwxrwx--- dhcp dhcp 2014-05-27 12:39 dhcp

drwxrwx--x system system 2014-05-27 12:39 keychain

drwx------ keystore keystore 2014-05-27 12:39 keystore

drwx------ media media 2014-05-27 12:39 media

drwxrwx--- system radio 2014-05-27 12:39 radio

drwxrwx--- system radio 2014-05-27 12:39 sms

drwx------ system system 2014-05-27 12:39 systemkeys

drwxrwx--- system vpn 2014-05-27 12:39 vpn

drwxrwx--- wifi wifi 2014-05-27 12:39 wifi

drwxrwxr-x system system 2014-05-27 12:39 zoneinfo

root@{yourboard}:/ # ls -l /system/etc/wifi

-rw-rw---- wifi wifi 77 2014-05-27 12:39 wpa_supplicant.conf

root@{yourboard}:/ # ps | grep wpa

wifi 2555 1 3104 1876 c0103edc 401a4448 S /system/bin/wpa_supplicant

root@{yourboard}:/ # cat system/etc/permissions/platform.xml | grep -i wifi

root@{yourboard}:/ # cat system/etc/permissions/required_hardware.xml | grep wifi

root@{yourboard}:/ # getprop | grep wifi

[net.tcp.buffersize.wifi]: [524288,1048576,2097152,262144,524288,1048576]

[ro.wifi.channels]: []

[wifi.interface]: [wlan0]

root@{yourboard}:/ # getprop | grep wlan

[dhcp.wlan0.dns1]: [192.168.1.1]

[dhcp.wlan0.dns2]: []

[dhcp.wlan0.dns3]: []

[dhcp.wlan0.dns4]: []

[dhcp.wlan0.domain]: []

[dhcp.wlan0.gateway]: [192.168.1.1]

[dhcp.wlan0.ipaddress]: [192.168.1.118]

[dhcp.wlan0.leasetime]: [86400]

[dhcp.wlan0.mask]: [255.255.255.0]

[dhcp.wlan0.pid]: [2689]

[dhcp.wlan0.reason]: [REBOOT]

[dhcp.wlan0.result]: [ok]

[dhcp.wlan0.server]: [192.168.1.1]

[dhcp.wlan0.vendorInfo]: []

[init.svc.dhcpcd_wlan0]: [running]

[wifi.interface]: [wlan0]

[wlan.driver.status]: [ok]

[wlan.interface]: [wlan0]

root@{yourboard}:/ # getprop | grep suppl

[init.svc.rtw_suppl]: [running]

root@{yourboard}:/ # cat /sys/kernel/debug/usb/devices

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0

D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1

P: Vendor=0bda ProdID=8176 Rev= 2.00

S: Manufacturer=Realtek

S: Product=802.11n WLAN Adapter

S: SerialNumber=00e04c000001

C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA

I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu

E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=125us

root@{yourboard}:/ # cat /sys/bus/usb/devices/2-1/product

802.11n WLAN Adapter

Useful commands:

disable wifi:

root@{yourboard}:/ # svc wifi disable

enable wifi:

root@{yourboard}:/ # svc wifi enable

open wifi settings panel:

root@{yourboard}:/ # am start -a android.intent.action.MAIN -n com.android.settings/.wifi.WifiSettings

manually starting supplicant with debug:

root@{yourboard}:/ # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B

root@{yourboard}:/ # netcfg wlan0 up/down/dhcp

root@{yourboard}:/ # wpa_cli

> status

bssid=20:aa:4b:1b:a1:7c

ssid=ECTEST

id=0

mode=station

pairwise_cipher=NONE

group_cipher=NONE

key_mgmt=NONE

wpa_state=COMPLETED

ip_address=192.168.1.118

p2p_device_address=44:34:4c:8b:f2:10

address=44:34:4c:8b:f2:10

<3>CTRL-EVENT-STATE-CHANGE id=0 state=9 BSSID=20:aa:4b:1b:a1:7c SSID=ECTEST

<3>CTRL-EVENT-CONNECTED - connection to 20:aa:4b:1b:a1:7c completed (reauth) [id=0 id_str=]

> scan

cfg80211_rtw_scan(wlan0)

> no packet in tx packet buffer (0)

survey done event(14) band:0 for wlan0

<3>CTRL-EVENT-SCAN-RESULTS

> scan_results

bssid / frequency / signal level / flags / ssid

20:aa:1b:1b:a1:7c 2437 -74 [WPS][ESS] ECTEST

00:1d:3e:bd:10:05 2457 -85 [WPA-PSK-TKIP][ESS] net02

68:7f:74:03:c6:be 2432 -59 [ESS] \x00\x00\x00\x00

c8:23:73:3f:05:71 2462 -66 [ESS] Nick's router. Hands off.

root@{yourboard}:/ # ifconfig wlan0

wlan0: ip 192.168.1.118 mask 255.255.255.0 flags [up broadcast running multicast]

root@{yourboard}:/ # dhcpcd wlan0

dhcpcd[3373]: version 5.5.6 starting

dhcpcd[3373]: wlan0: rebinding lease of 192.168.1.118

dhcpcd[3373]: wlan0: acknowledged 192.168.1.118 from 192.168.1.1

dhcpcd[3373]: wlan0: leased 192.168.1.118 for 86400 seconds

dhcpcd[3373]: forked to background, child pid 3405

root@{yourboard}:/ # netcfg

lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00

eth0 UP 192.168.0.152/24 0x00001043 24:80:00:00:00:00

tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

wlan0 UP 192.168.1.118/24 0x00001043 44:34:4c:8b:f2:10

wlan1 DOWN 0.0.0.0/0 0x00001002 46:34:4c:8b:f2:10

Good luck with it and please let me know if you need more info.

problem/solution:

if you get this problem:

E/wpa_supplicant( 3159): Could not set interface wlan0 flags (UP): Unknown error 132

solution:

missing rfkill, error 132 means "operation not possible due to RFkill"

vim kernel_imx/arch/arm/mach-mx6/board-mx6sl_{yourboard}.c

static int mx6sl_shd_bt_power_change(int status){return 0;}

static struct platform_device mxc_bt_rfkill = {

.name = "mxc_bt_rfkill",

};

static struct imx_bt_rfkill_platform_data mxc_bt_rfkill_data = {

.power_change = mx6sl_shd_bt_power_change,

};

/* init function */

static void __init {yourboard}_init(void){

...

mxc_register_device(&mxc_bt_rfkill, &mxc_bt_rfkill_data);

}

problem:

E/WifiHW ( 2488): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": No such file or directory

solution:

setup correctly in init.rc and init.freescale.rc scripts wifi and wpa_supplicant permissions and services.

查看上下文中的回答

1874 查看
标签： android
带有 android 标记的内容
, wifi
带有 wifi 标记的内容
, imx6sl
带有 imx6sl 标记的内容
, realtek
带有 realtek 标记的内容
, rtl8192
带有 rtl8192 标记的内容
分类： Suspected Software Defect , i.MX6SL , Linux , i.MX6_All , Android

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Re: wifi binding on imx6sl evk based board

igorpadykov 2014-4-25 上午2:36 （回复 Zoran Lukic）

Hi, Zoran

what Android was used, is it Freescale Android (link below) ?

IMX6_JB43_110_ANDROID_SOURCE_BSP : i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite,

i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 0 BSP, Documentation and Source Code

i.MX 6SoloLite Evaluation Kit

Also very often WiFi modules have different firmware, so different drivers are needed, though module

name may the same. Have you contacted Realtek for updated version of driver for this specific module ?
- 喜爱显示 0 喜欢(0)
- Re: Re: wifi binding on imx6sl evk based board
  
  Zoran Lukic 2014-4-27 上午12:37 （回复 igorpadykov）
  
  Hello,
  
  Thank you for answering,
  
  Yeah, I wanted to add that info. It was JB4.3 and the Realtek porting for rtl8192cu driver is for JB4.2.
  
  Some more porting work was needed to be done that wasnt in the manual.
  
  Also we are currently working on nfs, there shouldnt be some permissions problem.
  
  We put every all firmware files in the root fs (nfs) just in case.
  
  ls /system/etc/firmware/rtlwifi/ -l
  
  -rw------- root    root        11216 2014-04-23 13:10 rtl8188efw.bin
  
  -rw------- root    root        13904 2014-04-23 13:10 rtl8188eufw.bin
  
  -rw------- root    root        13540 2014-04-23 13:10 rtl8192cfw.bin
  
  -rw------- root    root        14818 2014-04-23 13:10 rtl8192cfwU.bin
  
  -rw------- root    root        14800 2014-04-23 13:10 rtl8192cfwU_B.bin
  
  -rw------- root    root        16014 2014-04-23 13:10 rtl8192cufw.bin
  
  -rw------- root    root        16116 2014-04-23 13:10 rtl8192cufw_A.bin
  
  -rw------- root    root        16096 2014-04-23 13:10 rtl8192cufw_B.bin
  
  -rw------- root    root        16116 2014-04-23 13:10 rtl8192cufw_TMSC.bin
  
  -rw------- root    root        22978 2014-04-23 13:10 rtl8192defw.bin
  
  -rw------- root    root        32754 2014-04-23 13:10 rtl8192eefw.bin
  
  -rw------- root    root        80208 2014-04-23 13:10 rtl8192sefw.bin
  
  -rw------- root    root      122328 2014-04-23 13:10 rtl8712u.bin
  
  -rw------- root    root        22172 2014-04-23 13:10 rtl8723aufw_A.bin
  
  -rw------- root    root        24118 2014-04-23 13:10 rtl8723aufw_B.bin
  
  -rw------- root    root        19200 2014-04-23 13:10 rtl8723aufw_B_NoBT.bin
  
  -rw------- root    root        11662 2014-04-23 13:10 rtl8723fw.bin
  
  -rw------- root    root        22996 2014-04-23 13:10 rtl8723fw_B.bin
  
  -rw------- root    root        29198 2014-04-23 13:10 rtl8821aefw.bin
  
  but driver source it askes for:
  
  (kernel_imx/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c file)
  
  MODULE_FIRMWARE("rtlwifi/rtl8192cufw.bin");
  
  also, driver is build in the kernel, from boot:
  
  rtl8192cu driver version=v4.0.2_9000.20130911
  
  build time: Apr 24 2014 13:14:21
  
  usbcore: registered new interface driver rtl8192cu
  
  ..
  
  USB_SPEED_HIGH
  
  CHIP TYPE: RTL8188C_8192C
  
  register rtw_netdev_ops to netdev_ops
  
  android_work: sent uevent USB_STATE=CONNECTED
  
  Netfilter messages via NETLINK v0.30.
  
  android_work: sent uevent USB_STATE=DISCONNECTED
  
  Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.
  
  nf_conntrack version 0.5.0 (7141 buckets, 28564 max)
  
  RF_Type is 3!!
  
  ctnetlink v0.93: registering with nfnetlink.
  
  NF_TPROXY: Transparent proxy support initialized, version 4.1.0
  
  ...
  
  readAdapterInfo_8192CU(): REPLACEMENT = 0
  
  <==== ReadAdapterInfo8192C in 570 ms
  
  rtw_register_early_suspend
  
  rtw_macaddr_cfg MAC Address = 44:33:4c:8b:f2:10
  
  bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0
  
  This shouldn't be a problem:
  
  -rw------- root    root
  
  because system handles driver. But I will check out this, more.
  
  Other thing is that wpa_supplicant isnt not called from init script, there is no trace of it in logcat.
  
  in init.freescale.rs file:
  
  service wpa_supplicant /system/bin/wpa_supplicant -iwlan0 -Dnl80211 \
  
      -c/data/misc/wifi/wpa_supplicant.conf
  
      socket wpa_wlan0 dgram 660 wifi wifi
  
      class late_start
  
      disabled
  
      oneshot
  
  service p2p_supplicant /system/bin/wpa_supplicant \
  
      -ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf -N \
  
      -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf
  
      class late_start
  
      disabled
  
      oneshot
  
  service rtw_suppl_con /system/bin/rtl_wpa_supplicant \
  
      -ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf -e/data/misc/wifi/entropy.bin -N \
  
      -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf
  
      class late_start
  
      socket wpa_wlan0 dgram 660 wifi wifi
  
      disabled
  
      oneshot
  
  service rtw_suppl /system/bin/wpa_supplicant -iwlan0 -Dnl80211a \
  
      -c/data/misc/wifi/wpa_supplicant.conf
  
      socket wpa_wlan0 dgram 660 wifi wifi
  
      class main
  
      disabled
  
      oneshot
  
  service dhcpcd_wlan0 /system/bin/dhcpcd -aABKL
  
      class main
  
      disabled
  
      oneshot
  
  service dhcpcd_p2p /system/bin/dhcpcd -aABKL
  
      class main
  
      disabled
  
      oneshot
  
  service iprenew_wlan0 /system/bin/dhcpcd -n
  
      class main
  
      disabled
  
      oneshot
  
  service iprenew_p2p /system/bin/dhcpcd -n
  
      class main
  
      disabled
  
      oneshot
  
  in init.rs file:
  
      # give system access to wpa_supplicant.conf for backup and restore
  
      mkdir /data/misc/wifi 0770 wifi wifi
  
      chmod 0770 /data/misc/wifi
  
      mkdir /data/misc/wifi/sockets 0770 wifi wifi
  
      mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
  
      mkdir /data/misc/wifi/p2p_supplicant 0770 wifi wifi
  
      mkdir /data/misc/dhcp 0770 dhcp dhcp
  
      chown dhcp dhcp /data/misc/dhcp
  
      chmod 0660 /data/misc/wifi/wpa_supplicant.conf
  
      chmod 0660 /data/misc/wifi/p2p_supplicant.conf
  
      chmod 0775 /system/etc/dhcpcd/dhcpcd-run-hooks
  
  ######for nfs maybe some permissions problems (didn't work)
  
  #    chown system wifi /data/misc/wifi
  
  #    chown system wifi /data/misc/wifi/wpa_supplicant.conf
  
  #    chown system wifi /system/etc/wifi/wpa_supplicant.conf
  
  If we manual start dhcp for wlan0, we can get wifi ip address (in my previous post).
  
  When we manually call wpa_supplicant:
  
  wpa_supplicant -iwlan0 -c/system/etc/wifi/wpa_supplicant.conf -B
  
  we get this in logcat:
  
  --------- beginning of /dev/log/main
  
  I/wpa_supplicant( 2938): Successfully initialized wpa_supplicant
  
  E/wpa_supplicant( 2938): nl80211: Could not add multicast membership for scan events: -2 (No such file or directory)
  
  E/wpa_supplicant( 2938): Failed to initialize driver 'nl80211'
  
  In board config file:
  
  (./device/fsl/evk_6sl/BoardConfig.mk file)
  
  BOARD_WPA_SUPPLICANT_DRIVER := NL80211
  
  BOARD_HOSTAPD_DRIVER        := NL80211
  
  in both
  
  ./external/wpa_supplicant_8/wpa_supplicant/android.config
  
  and
  
  ./external/wpa_supplicant_8/hostapd/android.config
  
  CONFIG_DRIVER_NL80211=y
  
  We didn't contacted Realtek yet, we believe that we have some binding problems with driver and android ui.
  
  Also, slider button for wifi in the Settings menu in the Android ui seamed not to be connected to Settings>Wifi button.
  
  I can move button in Settings menu, to On state. And the enter the Settings>Wi-Fi and the button is in Off state.
  
  Exiting Settings>Wi-Fi menu and entering it again, it shows that button is back in Off state.
  
  Toggling wifi button to Off state isn't possible, after it was set to On state by us.
  
  After moving the wifi button slider to Off state we get this in logcat:
  
  D/WifiService( 2401): setWifiEnabled: true pid=2561, uid=1000
  
  E/WifiService( 2401): Invoking mWifiStateMachine.setWifiEnabled
  
  in system/core/include/private/android_filesystem_config.h file we can see uid's
  
  #define AID_SYSTEM        1000 /* system server */
  
  #define AID_WIFI          1010 /* wifi subsystem */
  
  Do we need to register platform driver callbacks, but this is usb module, it shouldn't need that?
  
  Is it some nfs permission related issue with wifi?
  
  So, what do you think?
  
  喜爱显示 0 喜欢(0)
  - Re: Re: wifi binding on imx6sl evk based board
    
    Zoran Lukic 2014-4-25 上午7:54 （回复 Zoran Lukic）
    
    building the driver as module also doesn't work ..
    
    we are pretty sure that it is to android binding with driver.
    
    we tried three different drivers for rtl8192cu.
    
    root@evk_6sl:/ # insmod /system/lib/modules/cfg80211_realtek.ko
    
    cfg80211: Calling CRDA to update world regulatory domain
    
    root@evk_6sl:/ # insmod /system/lib/modules/8192cu.ko
    
    rtl8192cu driver version=v4.0.2_9000.20130911
    
    build time: Apr 25 2014 15:18:54
    
    usb_endpoint_descriptor(0):
    
    bLength=7
    
    bDescriptorType=5
    
    bEndpointAddress=81
    
    wMaxPacketSize=200
    
    bInterval=0
    
    RT_usb_endpoint_is_bulk_in = 1
    
    usb_endpoint_descriptor(1):
    
    bLength=7
    
    bDescriptorType=5
    
    bEndpointAddress=2
    
    wMaxPacketSize=200
    
    bInterval=0
    
    RT_usb_endpoint_is_bulk_out = 2
    
    usb_endpoint_descriptor(2):
    
    bLength=7
    
    bDescriptorType=5
    
    bEndpointAddress=3
    
    wMaxPacketSize=200
    
    bInterval=0
    
    RT_usb_endpoint_is_bulk_out = 3
    
    usb_endpoint_descriptor(3):
    
    bLength=7
    
    bDescriptorType=5
    
    bEndpointAddress=84
    
    wMaxPacketSize=40
    
    bInterval=1
    
    RT_usb_endpoint_is_int_in = 4, Interval = 1
    
    nr_endpoint=4, in_num=2, out_num=2
    
    USB_SPEED_HIGH
    
    CHIP TYPE: RTL8188C_8192C
    
    register rtw_netdev_ops to netdev_ops
    
    Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.
    
    RF_Type is 3!!
    
    EEPROM type is E-FUSE
    
    ====> ReadAdapterInfo8192C
    
    Boot from EFUSE, Autoload OK !
    
    EEPROMVID = 0x0bda
    
    EEPROMPID = 0x8176
    
    EEPROMCustomerID : 0x00
    
    EEPROMSubCustomerID: 0x00
    
    RT_CustomerID: 0x00
    
    _ReadMACAddress MAC Address from EFUSE = 44:33:4c:8b:f2:10
    
    EEPROMRegulatory = 0x0
    
    _ReadBoardType(0)
    
    BT Coexistance = disable
    
    mlmepriv.ChannelPlan = 0x08
    
    _ReadPSSetting...bHWPwrPindetect(0)-bHWPowerdown(10) ,bSupportRemoteWakeup(0)
    
    ### PS params=> power_mgnt(0),usbss_enable(0) ###
    
    ### AntDivCfg(0)
    
    readAdapterInfo_8192CU(): REPLACEMENT = 0
    
    <==== ReadAdapterInfo8192C in 180 ms
    
    rtw_wdev_alloc(padapter=da5f7000)
    
    rtw_register_early_suspend
    
    rtw_macaddr_cfg MAC Address = 44:33:4c:8b:f2:10
    
    bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0
    
    register rtw_netdev_ops to netdev_ops
    
    register rtw_netdev_if2_ops to netdev_ops
    
    rtw_wdev_alloc(padapter=db8e7000)
    
    Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.
    
    RF_Type is 3!!
    
    _rtw_drv_register_netdev, MAC Address (if1) = 44:33:4c:8b:f2:10
    
    _rtw_drv_register_netdev, MAC Address (if2) = 46:33:4c:8b:f2:10
    
    usbcore: registered new interface driver rtl8192cu
    
    here is this kernel build config file:
    
    CONFIG_WLAN=y
    
    CONFIG_WIFI_CONTROL_FUNC=y
    
    CONFIG_HOSTAP=y
    
    CONFIG_CFG80211=m
    
    CONFIG_NL80211_TESTMODE=y
    
    CONFIG_CFG80211_REG_DEBUG=y
    
    CONFIG_CFG80211_DEFAULT_PS=y
    
    CONFIG_CFG80211_DEBUGFS=y
    
    CONFIG_CFG80211_WEXT=y
    
    CONFIG_LIB80211=y
    
    CONFIG_LIB80211_CRYPT_WEP=y
    
    CONFIG_LIB80211_CRYPT_CCMP=y
    
    CONFIG_LIB80211_CRYPT_TKIP=y
    
    CONFIG_CFG80211_ALLOW_RECONNECT=y
    
    CONFIG_MAC80211=m
    
    CONFIG_MAC80211_HAS_RC=y
    
    CONFIG_MAC80211_RC_MINSTREL=y
    
    CONFIG_MAC80211_RC_MINSTREL_HT=y
    
    CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
    
    CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
    
    CONFIG_MAC80211_MESH=y
    
    CONFIG_RTL8192CU=m
    
    root@evk_6sl:/ # lsmod
    
    8192cu 674910 0 - Live 0x00000000
    
    cfg80211 155527 1 8192cu, Live 0x00000000
    
    before that driver was build as part of kernel:
    
    CONFIG_RTL8192CU=y
    
    喜爱显示 0 喜欢(0)
    - Re: wifi binding on imx6sl evk based board
      
      igorpadykov 2014-5-6 上午12:34 （回复 Zoran Lukic）
      
      Hi Zoran, I got advice from our expert:
      
      I had been reading about this issue and also i read the description from the client and seem
      
      there's some missing configuration which the client could try.
      
      First of all try to set BOARD_WPA_SUPPLICANT_DRIVER to WEXT in the Android BSP.
      
      Also you need to provide a proper wpa configuration file for your device.
      
      For more details check this reference:
      
      PaNiC Random Rant (or how we used to call it: .plan): Porting WiFi drivers to Android
      
      Hope this helps
      
      喜爱显示 0 喜欢(0)
      - Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-5-6 下午2:24 （回复 igorpadykov）
        
        Yep, I tried this link.
        
        In manual provided with rtl wifi driver, it states to use new nl80211 interface.
        
        BoardConfig.mk
        
        BOARD_WPA_SUPPLICANT_DRIVER=NL80211
        
        Problem is that Wifi slider switch cant be moved, but nothing happens, so some binding or some permissions are problem. This is done in nfs.
        
        When slider is moved to On position in logcat we get this:
        
        D/WifiService( 2401): setWifiEnabled: true pid=2561, uid=1000
        
        E/WifiService( 2401): Invoking mWifiStateMachine.setWifiEnabled
        
        there should be more data or some error or permission staff for wifi, after this.
        
        wpa_supplicant doesnt start automatically, but it is in init.freescale.rc script. It can start manually with nl80211 driver.
        
        WEXT, I will try this again, thank you. I am not sure it will work, i dont think the driver is problem. I can scan and get all networks in area, using shell.
        
        喜爱显示 0 喜欢(0)
        
        Re: wifi binding on imx6sl evk based board
        
        Robert McLean 2014-5-27 下午1:46 （回复 Zoran Lukic）
        
        We have a similar setup and are having the same problems. Right down to the same bogus IP address reported by netconfig after dhcpcd seems to believe it got an address from the DHCP server on my Access Point.
        
        Has there been any activity on this?
        
        喜爱显示 0 喜欢(0)
        
        正确答案Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-5-28 上午6:52 （回复 Robert McLean）
        
        Yes, we manage to get wifi working. Here are info's in more detail, so if anybody else has problem ...
        
        We build driver as part of the kernel:
        
        vim kernel_imx/arch/arm/configs/imx6s_{yourdevice}_android_defconfig
        
        CONFIG_CFG80211=y
        
        CONFIG_MAC80211_MESH=y
        
        CONFIG_MAC80211=y
        
        CONFIG_HOSTAP=y
        
        CONFIG_RTL8192CU=y
        
        CONFIG_RTLWIFI=y
        
        CONFIG_RTL8192C_COMMON=y
        
        #CONFIG_RTL8723AS=m
        
        CONFIG_USB_USBNET=y
        
        CONFIG_NET_RADIO=y
        
        vim device/fsl/{yourdevice}/BoardConfig.mk
        
        BOARD_WIFI_VENDOR := realtek
        
        WPA_SUPPLICANT_VERSION := VER_0_8_X
        
        CONFIG_DRIVER_NL80211 := true
        
        BOARD_WPA_SUPPLICANT_DRIVER := NL80211
        
        BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_rtl
        
        BOARD_HOSTAPD_DRIVER := NL80211
        
        BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl
        
        BOARD_WLAN_DEVICE := rtl8192cu
        
        WIFI_DRIVER_MODULE_NAME := "wlan0"
        
        WIFI_DRIVER_MODULE_PATH := ""
        
        WIFI_DRIVER_MODULE_ARG := ""
        
        WIFI_FIRMWARE_LOADER := ""
        
        WIFI_DRIVER_FW_PATH_STA := ""
        
        WIFI_DRIVER_FW_PATH_AP := ""
        
        WIFI_DRIVER_FW_PATH_P2P := ""
        
        WIFI_DRIVER_FW_PATH_PARAM := ""
        
        We disabled p2p, since we dont need it:
        
        vim device/fsl/imx6/{yourboard}.mk
        
        PRODUCT_COPY_FILES += \
        
        #frameworks/native/data/etc/android.hardware.wifi.direct.xml:system/etc/permissions/android.hardware.wifi.direct.xml
        
        or
        
        rm out/target/product/{yourboard}/system/etc/permissions/android.hardware.wifi.direct.xml
        
        or just remount system partition:
        
        root@{yourboard}:/ # mount -o remount, rw /system;
        
        and remove xml:
        
        root@{yourboard}:/ # rm /system/etc/permissions/android.hardware.wifi.direct.xml
        
        edit:
        
        root@{yourboard}:/ # busybox vi system/etc/permissions/required_hardware.xml
        
        or
        
        vim device/fsl/{yourboard}/required_hardware.xml
        
        or
        
        vim out/target/product/{yourboard}/system/etc/permissions/required_hardware.xml
        
        
        
        If you use it as module, you will need to add it also in PRODUCT_COPY_FILES
        
        You need to correct init scripts, leave just this lines:
        
        (this is from: http://blog.linuxconsulting.ro/2010/04/porting-wifi-drivers-to-android.html )
        
        You can do it directly to out folder:
        
        vim out/target/product/{yourboard}/root/init.rc
        
        or/and (rebuild the whole system):
        
        vim device/fsl/imx6/imx6.mk
        
        mkdir /system/etc/wifi 0770 wifi wifi
        
        chmod 0770 /system/etc/wifi
        
        chmod 0660 /system/etc/wifi/wpa_supplicant.conf
        
        chown wifi wifi /system/etc/wifi/wpa_supplicant.conf
        
        #wpa_supplicant control socket for android wifi.c (android private socket)
        
        mkdir /data/misc/wifi 0770 wifi wifi
        
        mkdir /data/misc/wifi/sockets 0770 wifi wifi
        
        chmod 0770 /data/misc/wifi
        
        chmod 0660 /data/misc/wifi/wpa_supplicant.conf
        
        chown wifi wifi /data/misc/wifi
        
        chown wifi wifi /data/misc/wifi/wpa_supplicant.conf
        
            setprop wifi.interface wlan0
        
            setprop wlan.driver.status "ok"
        
           #setprop wifi.ap.interface wlan0
        
        #and also remove this lines:
        
        #    mkdir /data/system/wpa_supplicant 0771 wifi wifi
        
        #    chmod 0771 /data/system/wpa_supplicant
        
        #    symlink /data/misc/wifi/wpa_supplicant /data/system/wpa_supplicant
        
        you can read it in that blog link, about unix/android standard socket setup.
        
        vim out/target/product/{yourboard}/root/init.freescale.rc
        
        or/and
        
        vim device/fsl/{yourboard}/init.rc
        
        #this is the only supplicant service and dhcpcd service for wifi that we use:
        
        service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \
        
            -c/data/misc/wifi/wpa_supplicant.conf
        
            socket wpa_wlan0 dgram 660 wifi wifi
        
            class main
        
            disabled
        
            oneshot
        
        service dhcpcd_wlan0 /system/bin/dhcpcd -aABKL
        
            class main
        
            disabled
        
            oneshot
        
        service iprenew_wlan0 /system/bin/dhcpcd -n
        
            class main
        
            disabled
        
            oneshot
        
        To keep it clean (it doesnt effect wifi):
        
        vim device/fsl/imx6/imx6.mk
        
        PRODUCT_PACKAGES += \
        
               rtw_suppl               \
        
        We needed to make a little change in wifi_realtek.c since our jb is 4.3:
        
        vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c
        
        int wifi_start_supplicant(int p2p_supported)
        
        ..
        
            wifi_stop_supplicant(p2p_supported);
        
        ….
        
        int wifi_stop_supplicant(int p2p_supported){
        
            char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
        
            int count = 50; /* wait at most 5 seconds for completion */
        
            if (p2p_supported) {
        
                property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);
        
                snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);
        
            } else {
        
                property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);
        
                snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);
        
            }
        
        Our problem was wrong supplicant name in prop setup. And, when wifi starts it first stops supplicant, and it wasn’t able to transfer that info through system. It was quite fun tracking this problem.
        
        vim ./frameworks/base/wifi/java/android/net/wifi/WifiStateMachine.java
        
        mWifiNative.killSupplicant(mP2pSupported);
        
        if(mWifiNative.startSupplicant(mP2pSupported)) {
        
                                    setWifiState(WIFI_STATE_ENABLING);
        
                                    if (DBG) log("Supplicant start successful");
        
                                    mWifiMonitor.startMonitoring();
        
                                    transitionTo(mSupplicantStartingState);
        
                                } else {
        
                                    loge("Failed to start supplicant!!");
        
                                }
        
        Here are more info:
        
        root@{yourdevice}:/ # cat /data/misc/wifi/wpa_supplicant.conf
        
        ctrl_interface=wlan0
        
        update_config=1
        
        device_name={yourdevice}
        
        manufacturer=Freescale
        
        model_name={YOURDEVICE}
        
        model_number={YOURDEVICE}
        
        serial_number=
        
        device_type=10-0050F204-5
        
        config_methods=physical_display virtual_push_button
        
        network={
        
                ssid="XXXXX"
        
                key_mgmt=NONE
        
                priority=1
        
        }
        
        and it started with:
        
        root@{yourdevice}:/ # cat system/etc/wifi/wpa_supplicant.conf
        
        update_config=1
        
        ctrl_interface=wlan0
        
        eapol_version=1
        
        ap_scan=1
        
        fast_reauth=1
        
        permissions:
        
        root@{yourdevice}:/ # ls -l /data/misc/wifi
        
        -rw-rw---- system   wifi           21 2014-05-27 12:39 entropy.bin
        
        drwxrwx--- wifi     wifi              2014-05-27 12:39 sockets
        
        -rw------- system   system         33 2014-05-27 12:39 softap.conf
        
        -rw-rw---- wifi     wifi          272 2014-05-27 12:39 wpa_supplicant.conf
        
        root@{yourboard}:/ # ls -l /data/misc/
        
        drwxr-s--- system   shell             2014-05-27 12:39 adb
        
        drwxrwx--- bluetooth net_bt_stack          2014-05-27 12:39 bluedroid
        
        drwxrwx--- system   system            2014-05-27 12:39 bluetooth
        
        drwxrwx--- dhcp     dhcp              2014-05-27 12:39 dhcp
        
        drwxrwx--x system   system            2014-05-27 12:39 keychain
        
        drwx------ keystore keystore          2014-05-27 12:39 keystore
        
        drwx------ media    media             2014-05-27 12:39 media
        
        drwxrwx--- system   radio             2014-05-27 12:39 radio
        
        drwxrwx--- system   radio             2014-05-27 12:39 sms
        
        drwx------ system   system            2014-05-27 12:39 systemkeys
        
        drwxrwx--- system   vpn               2014-05-27 12:39 vpn
        
        drwxrwx--- wifi     wifi              2014-05-27 12:39 wifi
        
        drwxrwxr-x system   system            2014-05-27 12:39 zoneinfo
        
        root@{yourboard}:/ # ls -l /system/etc/wifi
        
        -rw-rw---- wifi     wifi           77 2014-05-27 12:39 wpa_supplicant.conf
        
        root@{yourboard}:/ # ps | grep wpa
        
        wifi      2555 1     3104   1876 c0103edc 401a4448 S /system/bin/wpa_supplicant
        
        root@{yourboard}:/ # cat system/etc/permissions/platform.xml | grep -i wifi
        
            <permission name="android.permission.ACCESS_WIFI_STATE" >
        
                <group gid="wifi" />
        
            <permission name="android.permission.CHANGE_WIFI_STATE" >
        
                <group gid="wifi" />
        
            <permission name="android.permission.WIFI" >
        
                <group gid="wifi" />
        
        root@{yourboard}:/ # cat system/etc/permissions/required_hardware.xml | grep wifi
        
            <feature name="android.hardware.wifi" />
        
        root@{yourboard}:/ # getprop | grep wifi
        
        [net.tcp.buffersize.wifi]: [524288,1048576,2097152,262144,524288,1048576]
        
        [ro.wifi.channels]: []
        
        [wifi.interface]: [wlan0]
        
        root@{yourboard}:/ # getprop | grep wlan
        
        [dhcp.wlan0.dns1]: [192.168.1.1]
        
        [dhcp.wlan0.dns2]: []
        
        [dhcp.wlan0.dns3]: []
        
        [dhcp.wlan0.dns4]: []
        
        [dhcp.wlan0.domain]: []
        
        [dhcp.wlan0.gateway]: [192.168.1.1]
        
        [dhcp.wlan0.ipaddress]: [192.168.1.118]
        
        [dhcp.wlan0.leasetime]: [86400]
        
        [dhcp.wlan0.mask]: [255.255.255.0]
        
        [dhcp.wlan0.pid]: [2689]
        
        [dhcp.wlan0.reason]: [REBOOT]
        
        [dhcp.wlan0.result]: [ok]
        
        [dhcp.wlan0.server]: [192.168.1.1]
        
        [dhcp.wlan0.vendorInfo]: []
        
        [init.svc.dhcpcd_wlan0]: [running]
        
        [wifi.interface]: [wlan0]
        
        [wlan.driver.status]: [ok]
        
        [wlan.interface]: [wlan0]
        
        root@{yourboard}:/ # getprop | grep suppl
        
        [init.svc.rtw_suppl]: [running]
        
        root@{yourboard}:/ # cat /sys/kernel/debug/usb/devices
        
        T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
        
        D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
        
        P: Vendor=0bda ProdID=8176 Rev= 2.00
        
        S: Manufacturer=Realtek
        
        S: Product=802.11n WLAN Adapter
        
        S: SerialNumber=00e04c000001
        
        C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
        
        I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu
        
        E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
        
        E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
        
        E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
        
        E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=125us
        
        root@{yourboard}:/ # cat /sys/bus/usb/devices/2-1/product
        
        802.11n WLAN Adapter
        
        Useful commands:
        
        disable wifi:
        
        root@{yourboard}:/ # svc wifi disable
        
        enable wifi:
        
        root@{yourboard}:/ # svc wifi enable
        
        open wifi settings panel:
        
        root@{yourboard}:/ # am start -a android.intent.action.MAIN -n com.android.settings/.wifi.WifiSettings
        
        manually starting supplicant with debug:
        
        root@{yourboard}:/ # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B
        
        root@{yourboard}:/ # netcfg wlan0 up/down/dhcp
        
        root@{yourboard}:/ # wpa_cli
        
        > status
        
        bssid=20:aa:4b:1b:a1:7c
        
        ssid=ECTEST
        
        id=0
        
        mode=station
        
        pairwise_cipher=NONE
        
        group_cipher=NONE
        
        key_mgmt=NONE
        
        wpa_state=COMPLETED
        
        ip_address=192.168.1.118
        
        p2p_device_address=44:34:4c:8b:f2:10
        
        address=44:34:4c:8b:f2:10
        
        <3>CTRL-EVENT-STATE-CHANGE id=0 state=9 BSSID=20:aa:4b:1b:a1:7c SSID=ECTEST
        
        <3>CTRL-EVENT-CONNECTED - connection to 20:aa:4b:1b:a1:7c completed (reauth) [id=0 id_str=]
        
        > scan
        
        cfg80211_rtw_scan(wlan0)
        
        OK
        
        > no packet in tx packet buffer (0)
        
        survey done event(14) band:0 for wlan0
        
        <3>CTRL-EVENT-SCAN-RESULTS
        
        > scan_results
        
        bssid / frequency / signal level / flags / ssid
        
        20:aa:1b:1b:a1:7c       2437    -74     [WPS][ESS]      ECTEST
        
        00:1d:3e:bd:10:05       2457    -85     [WPA-PSK-TKIP][ESS]     net02
        
        68:7f:74:03:c6:be       2432    -59     [ESS]   \x00\x00\x00\x00
        
        c8:23:73:3f:05:71       2462    -66     [ESS]   Nick's router. Hands off.
        
        root@{yourboard}:/ # ifconfig wlan0
        
        wlan0: ip 192.168.1.118 mask 255.255.255.0 flags [up broadcast running multicast]
        
        root@{yourboard}:/ # dhcpcd wlan0
        
        dhcpcd[3373]: version 5.5.6 starting
        
        dhcpcd[3373]: wlan0: rebinding lease of 192.168.1.118
        
        dhcpcd[3373]: wlan0: acknowledged 192.168.1.118 from 192.168.1.1
        
        dhcpcd[3373]: wlan0: leased 192.168.1.118 for 86400 seconds
        
        dhcpcd[3373]: forked to background, child pid 3405
        
        root@{yourboard}:/ # netcfg
        
        lo       UP                                   127.0.0.1/8   0x00000049 00:00:00:00:00:00
        
        eth0     UP                               192.168.0.152/24 0x00001043 24:80:00:00:00:00
        
        tunl0    DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00
        
        sit0     DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00
        
        ip6tnl0 DOWN                                   0.0.0.0/0   0x00000080 00:00:00:00:00:00
        
        wlan0    UP                               192.168.1.118/24 0x00001043 44:34:4c:8b:f2:10
        
        wlan1    DOWN                                   0.0.0.0/0   0x00001002 46:34:4c:8b:f2:10
        
        Good luck with it and please let me know if you need more info.
        
        problem/solution:
        
        if you get this problem:
        
        E/wpa_supplicant( 3159): Could not set interface wlan0 flags (UP): Unknown error 132
        
        solution:
        
        missing rfkill, error 132 means "operation not possible due to RFkill"
        
        vim kernel_imx/arch/arm/mach-mx6/board-mx6sl_{yourboard}.c
        
        static int mx6sl_shd_bt_power_change(int status){return 0;}
        
        static struct platform_device mxc_bt_rfkill = {
        
        .name = "mxc_bt_rfkill",
        
        };
        
        static struct imx_bt_rfkill_platform_data mxc_bt_rfkill_data = {
        
        .power_change = mx6sl_shd_bt_power_change,
        
        };
        
        /* init function */
        
        static void __init {yourboard}_init(void){
        
             ...
        
             mxc_register_device(&mxc_bt_rfkill, &mxc_bt_rfkill_data);
        
        }
        
        problem:
        
        E/WifiHW ( 2488): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": No such file or directory
        
        solution:
        
        setup correctly in init.rc and init.freescale.rc scripts wifi and wpa_supplicant permissions and services.
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-18 上午3:31 （回复 Zoran Lukic）
        
        Hi All,
        
        I am working to bring up RealTeck USB wifi dongel on android 4.3 and kernel 3.0.35 below are steps I followed :
        
        1) I am building drivers as modules, copying them to /system/lib/modules/ and after that I added below lines in init.rc before wpa_supplicant service start.
        
            insmod /system/lib/modules/cfg80211.ko
        
            insmod /system/lib/modules/mac80211.ko
        
            insmod /system/lib/modules/rtlwifi.ko
        
            insmod /system/lib/modules/rtl8192c-common.ko
        
            insmod /system/lib/modules/rtl8192cu.ko
        
        2)wlan0 interface is creating successfully in /sys/class/net/wlan0.
        
        3) After that I try to run below commands :
        
        root@sabresd_6dq:wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B ---> success
        
        root@sabresd_6dq: wpa_cli ----> Able to scan the devices form command line .
        
        But if I try to do from application I am getting below errors:
        
        E/WifiHW ( 2514): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": Connection refused
        
        D/BluetoothAdapter( 2755): 1101306992: getState() : mService = null. Returning STATE_OFF
        
        I/wpa_supplicant( 3163): Successfully initialized wpa_supplicant
        
        I/wpa_supplicant( 3163): rfkill: Cannot open RFKILL control device
        
        E/wpa_supplicant( 3163): nl80211: Could not configure driver to use managed mode
        
        E/wpa_supplicant( 3163): Could not read interface p2p0 flags: No such device
        
        E/wpa_supplicant( 3163): p2p0: Failed to initialize driver interface
        
        kindly help me to solve issues.
        
        Thanks In Advance,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-18 上午3:48 （回复 Ranganath tm）
        
        Hello Ranganath,
        
        You need to run wpa_supplicant as service (in init.rc or init.xxxxx.rc script).
        
        Do you need rf kill ?
        
        We removed it completely from our android system.
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-18 上午4:23 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        Thanks for reply,
        
        I am running wpa_supplicant in init.freescale.rc and at boot time I am getting below error :
        
        D/NetworkManagementService( 2501): enabling bandwidth control
        
        I/wpa_supplicant( 2591): Successfully initialized wpa_supplicant
        
        I/wpa_supplicant( 2591): rfkill: Cannot open RFKILL control device
        
        E/wpa_supplicant( 2591): nl80211: Could not configure driver to use managed mode
        
        E/wpa_supplicant( 2591): Could not read interface p2p0 flags: No such device
        
        E/wpa_supplicant( 2591): p2p0: Failed to initialize driver interface
        
        E/WifiStateMachine( 2501): Failed to start supplicant!
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131144
        
        D/WifiStateMachine( 2501): processMsg: InitialState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131085
        
        D/WifiStateMachine( 2501): processMsg: InitialState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131149
        
        D/WifiStateMachine( 2501): processMsg: InitialState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): setSuspendOptimizations: 2 true
        
        D/WifiStateMachine( 2501): mSuspendOptNeedsDisabled 0
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        Note : When I run ps | grep wpa : result is nothing and wpa_supplicant is not running.
        
        But it works fine for me from command line
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-18 上午4:48 （回复 Ranganath tm）
        
        Are the service name and the name in the interface file same?
        
        vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c
        
        static const char SUPPLICANT_NAME[]     = "rtw_suppl"; /* without p2p concurrent */
        
        and
        
        in init.rc or init.xxxxx.rc script
        
        service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \
        
            -c/data/misc/wifi/wpa_supplicant.conf
        
            socket wpa_wlan0 dgram 660 wifi wifi
        
            class main
        
            disabled
        
            oneshot
        
        You could add ALOGE to wifi_start_supplicant function, to get more debug data.
        
        p2p is another service and interface.
        
        Are the modules loaded ok, after booting?
        
        Is the insert mod in the right place (you have on early-init, on boot, on fs), so maybe to make it as part of kernel, not modules, for start, to eliminate that.
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-18 上午5:27 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        Thanks for reply,
        
        1) Yes services names are same inside init.freescale.rc and wifi_realtek.c, kindly find below :
        
        static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */
        
        service rtw_suppl_con /system/bin/rtl_wpa_supplicant \
        
            -iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf
        
            class late_start
        
            socket wpa_wlan0 dgram 660 wifi wifi
        
            disabled
        
            oneshot
        
        2) I added logs inside function wifi_start_supplicant function and it pass below condition which give confidence supplicant is running,
        
        if (pi != NULL) {
        
                    __system_property_read(pi, NULL, supp_status);
        
                    if (strcmp(supp_status, "running") == 0) {
        
                        ALOGE("TMR supplicant running success");
        
                        return 0;
        
                    }
        
        3) Yes the modules are loading after boot in init.rc. Below is the result of lsmod,
        
        rtl8192cu 91079 0 - Live 0x00000000
        
        rtl8192c_common 54246 1 rtl8192cu, Live 0x00000000
        
        rtlwifi 88904 1 rtl8192cu, Live 0x00000000
        
        mac80211 164669 3 rtl8192cu,rtl8192c_common,rtlwifi, Live 0x00000000
        
        cfg80211 149736 2 rtlwifi,mac80211, Live 0x00000000
        
        4)But it fails in wifi_connect_on_socket_path function inside condition
        
        ctrl_conn[index] = wpa_ctrl_open(path1);
        
            if (ctrl_conn[index] == NULL) {
        
                ALOGE("TMR wifi_connect_on_socket_path inside if");
        
                ALOGE("Unable to open connection to supplicant on \"%s\": %s",
        
                        path, strerror(errno));
        
                return -1;
        
            }
        
        By throwing error E/WifiHW ( 2514): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": Connection refused.
        
        please help me to resolve issue.
        
        Thanks In Advance,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-18 上午6:42 （回复 Ranganath tm）
        
        This is P2P supplicant.
        
        static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */
        
        or
        
        static const char SUPPLICANT_NAME[] = "rtw_suppl"; /* without p2p concurrent */
        
        Do you have rtw_suppl running on system?
        
        I only have primary interface, not p2p (we dont need it)
        
        root@shd_6sl:/ # ps | grep supp
        
        wifi      2915 1     3108   1856 c00fdb8c 40191448 S /system/bin/wpa_supplicant
        
        root@shd_6sl:/ # getprop |grep suppl
        
        [init.svc.rtw_suppl]: [running]
        
        Do you have this file in android fs:
        
        /data/system/wpa_supplicant/wlan0 ?
        
        I dont think this is correct path.
        
        What is your wpa conf file, after you start wifi?
        
        Mine is:
        
        root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf
        
        update_config=1
        
        ctrl_interface=wlan0
        
        eapol_version=1
        
        ap_scan=1
        
        fast_reauth=1
        
        /* PRIMARY refers to the connection on the primary interface
        
        * SECONDARY refers to an optional connection on a p2p interface */
        
        Did you made modification so that jni (android_net_wifi_Wifi.cpp) can interface this driver?
        
        vim frameworks/base/core/jni/android_net_wifi_Wifi.cpp
        
        static jboolean android_net_wifi_killSupplicant(JNIEnv* env, jobject, jboolean p2pSupported)
        
        {
        
        return (jboolean)(::wifi_stop_supplicant(p2pSupported) == 0);
        
        }
        
        In 4.3 wifi_stop_supplicant function has argument:
        
        int wifi_stop_supplicant(int p2p_supported);
        
        also we have to add this (and some debug log):
        
        vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c
        
        int wifi_stop_supplicant(int p2p_supported) {
        
        .......
        
            if (p2p_supported) {
        
                property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);
        
                snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);
        
                  ALOGE("p2p_supported wifi.supplicant=%s\n",supplicant_name);
        
            } else {
        
                property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);
        
                snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);
        
                  ALOGE("wifi.supplicant=%s\n",supplicant_name);
        
            }
        
        If you do not use modules for rtl wifi, remember to add return 0; in wifi_realtek.c functions:
        
        insmod,rmmod,load_driver,wifi_load_driver,unload_driver,wifi_unload_driver.
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-19 上午2:54 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        sorry for late reply,
        
        when I run below command I am getting Permission denied issue where to change permission,
        
        root@sabresd_6dq:/data/system # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B
        
        rtl8192cu: MAC auto ON okay!
        
        rtl8192cu: Tx queue select: 0x05
        
        rtl8192c: Loading firmware file rtlwifi/rtl8192cufw.bin
        
        ADDRCONF(NETDEV_UP): wlan0: link is not ready
        
        mkdir[ctrl_interface]: Permission denied
        
        I tried my mounting /system and /data partition as rw in fstab.freescale
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-19 上午3:03 （回复 Ranganath tm）
        
        Hi Ranganath,
        
        In init.rc file, you have to setup correct permission, group and owner:
        
        mkdir /system/etc/wifi 0770 wifi wifi
        
        chmod 0770 /system/etc/wifi
        
        chmod 0660 /system/etc/wifi/wpa_supplicant.conf
        
        chown wifi wifi /system/etc/wifi/wpa_supplicant.conf
        
        #wpa_supplicant control socket for android wifi.c (android private socket)
        
        mkdir /data/misc/wifi 0770 wifi wifi
        
        mkdir /data/misc/wifi/sockets 0770 wifi wifi
        
        chmod 0770 /data/misc/wifi
        
        chmod 0660 /data/misc/wifi/wpa_supplicant.conf
        
        chown wifi wifi /data/misc/wifi
        
        chown wifi wifi /data/misc/wifi/wpa_supplicant.conf
        
        Check this two folders and files in them:
        
        /system/etc/wifi
        
        and
        
        /data/misc/wifi
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-19 上午3:18 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        I executed the permissions give by you in command line, and below are the permissions of
        
        ls -l /system/etc/wifi/
        
        -rw-rw---- wifi     wifi          132 2014-11-19 09:19 wpa_supplicant.conf
        
        ls -l /data/misc/wifi/                                                         <
        
        drwxrwx--- wifi     wifi              1970-01-01 00:00 sockets
        
        -rw------- system   system         33 1970-01-02 00:00 softap.conf
        
        drwxrwx--- wifi     wifi              1970-01-01 00:00 wpa_supplicant
        
        -rw-rw---- wifi     wifi          132 1970-01-02 00:01 wpa_supplicant.conf
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-19 上午3:58 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        I am able to solve permission issue now wpa_supplicant is running in command line, but I fails when I try from settings app below are logs:
        
        root@sabresd_6dq:/data/system/wpa_supplicant # logcat
        
        --------- beginning of /dev/log/system
        
        D/WifiService( 2515): setWifiEnabled: true pid=2835, uid=1000
        
        --------- beginning of /dev/log/main
        
        D/WifiStateMachine( 2515): handleMessage: E msg.what=131083
        
        D/WifiStateMachine( 2515): processMsg: InitialState
        
        E/WifiHW ( 2515): the ret value form is_wifi_driver_loaded = 1
        
        E/WifiHW ( 2515): the check condition inside wifi.c wifi_load_driver
        
        E/WifiStateMachine( 2515): trying to start supplicant
        
        D/SoftapController( 2184): Softap fwReload - Ok
        
        D/CommandListener( 2184): Setting iface cfg
        
        D/CommandListener( 2184): Trying to bring down wlan0
        
        E/WifiHW ( 2515): inside wifi_stop_supplicant = init.svc.wpa_supplicant
        
        D/dalvikvm( 2515): GC_CONCURRENT freed 315K, 44% free 5272K/9408K, paused 3ms+3ms, total 42ms
        
        E/WifiHW ( 2515): wifi_start_supplicant p2p=0
        
        E/WifiHW ( 2515): Wi-Fi will ensure config file exist
        
        D/WifiHW ( 2515): start supplicant cmd=wpa_supplicant
        
        E/WifiHW ( 2515): TMR after start supplicant checking its status
        
        E/WifiHW ( 2515): TMR supplicant name = init.svc.wpa_supplicant
        
        I/wpa_supplicant( 3297): Successfully initialized wpa_supplicant
        
        E/WifiHW ( 2515): TMR after start supplicant checking its status
        
        E/WifiHW ( 2515): TMR supplicant name = init.svc.wpa_supplicant
        
        E/WifiHW ( 2515): TMR: supplicant stopped
        
        E/WifiStateMachine( 2515): Failed to start supplicant!
        
        D/WifiStateMachine( 2515): handleMessage: X
        
        D/WifiStateMachine( 2515): handleMessage: E msg.what=131144
        
        D/WifiStateMachine( 2515): processMsg: InitialState
        
        D/WifiStateMachine( 2515): processMsg: DefaultState
        
        D/WifiStateMachine( 2515): handleMessage: X
        
        D/WifiStateMachine( 2515): handleMessage: E msg.what=131085
        
        D/WifiStateMachine( 2515): processMsg: InitialState
        
        D/WifiStateMachine( 2515): processMsg: DefaultState
        
        D/WifiStateMachine( 2515): handleMessage: X
        
        D/WifiStateMachine( 2515): handleMessage: E msg.what=131149
        
        D/WifiStateMachine( 2515): processMsg: InitialState
        
        D/WifiStateMachine( 2515): processMsg: DefaultState
        
        D/WifiStateMachine( 2515): setSuspendOptimizations: 2 true
        
        D/WifiStateMachine( 2515): mSuspendOptNeedsDisabled 0
        
        D/WifiStateMachine( 2515): handleMessage: X
        
        Thanks And Regrads,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-19 上午4:43 （回复 Ranganath tm）
        
        Did you restart device, always try to turn wifi on from Settings after reboot.
        
        Could you cat wpa_supplicant.conf file in /system/etc/wifi/ and also in /data/misc/wifi, they seamed to be same size, but a little too big :-) ?
        
        Here are mine:
        
        root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf
        
        update_config=1
        
        ctrl_interface=wlan0
        
        eapol_version=1
        
        ap_scan=1
        
        fast_reauth=1
        
        same as in
        
        root@shd_6sl:/ # cat /system/etc/wifi/wpa_supplicant.conf
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-20 上午5:01 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        I did following experiment first I turned on wpa_supplicant in command line and after the I typed svc_wifi_enable, by below experiment I am able to see wifi device list in settings app,
        
        cat system/etc/permissions/platform.xml | grep -i wifi ---------> I am not able find any thing in my system
        
        Below are my config files:
        
        cat /data/misc/wifi/wpa_supplicant.conf
        
        ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi
        
        update_config=1
        
        device_name=sabresd_6dq
        
        manufacturer=Freescale
        
        model_name=SABRESD-MX6DQ
        
        model_number=SABRESD-MX6DQ
        
        serial_number=
        
        device_type=10-0050F204-5
        
        config_methods=physical_display virtual_push_button
        
        p2p_listen_reg_class=81
        
        p2p_listen_channel=11
        
        persistent_reconnect=1
        
        network={
        
                ssid="XT1068 2883"
        
                key_mgmt=NONE
        
                priority=5
        
        }
        
        network={
        
                ssid="HemanthAP"
        
                psk="medconnect"
        
                key_mgmt=WPA-PSK
        
                priority=6
        
                disabled=1
        
        }
        
        cat /system/etc/wifi/wpa_supplicant.conf                                                  <
        
        ##### wpa_supplicant configuration file template #####
        
        update_config=1
        
        ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi
        
        eapol_version=1
        
        ap_scan=1
        
        fast_reauth=1
        
        config_methods=virtual_push_button physical_display keypad
        
        p2p_listen_channel=11
        
        p2p_listen_reg_class=81
        
        persistent_reconnect=1
        
        root@sabresd_6dq:/ #
        
        Thanks And Regrads,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-20 上午5:15 （回复 Ranganath tm）
        
        Hi Ranganath,
        
        So, it works now?
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-20 上午5:24 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        If I start wpa_supplicant and run svc wifi enable form command line its working, but it's not working form setting app.
        
        And I am not able to find any thing in command line by typing below command,
        
        cat system/etc/permissions/platform.xml | grep -i wifi
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-20 上午6:25 （回复 Ranganath tm）
        
        So, there is a problem with jni or some permissions.
        
        What is in the logcat?
        
        Do you have this:
        
        cat system/etc/permissions/required_hardware.xml | grep wifi
        
            <feature name="android.hardware.wifi" />
        
        there should be also android.hardware,wifi.direct or something like that. You could try it for now, without wifi.direct.
        
        Edit file
        
        vim ./frameworks/base/data/etc/platform.xml
        
        or directly in android /system/etc/permissions/platform.xml and add those lines
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-21 上午12:23 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        I have android.hardware.wifi.xml which as the <feature name="android.hardware.wifi" /> and I tried by removing android.hardware.wifi.direct.xml, but the result is same the wpa_supplicant is not running. Below are errors:
        
        E/WifiHW ( 2511): the ret value form is_wifi_driver_loaded = 1
        
        E/WifiStateMachine( 2511): trying to start supplicant
        
        D/SoftapController( 2195): Softap fwReload - Ok
        
        D/CommandListener( 2195): Setting iface cfg
        
        D/CommandListener( 2195): Trying to bring down wlan0
        
        E/WifiHW ( 2511): wifi_start_supplicant p2p=0
        
        E/WifiHW ( 2511): Wi-Fi will ensure config file exist
        
        D/WifiHW ( 2511): start supplicant cmd=wpa_supplicant
        
        E/WifiHW ( 2511): TMR:supplicant running success, sup_name=wpa_supplicant
        
        D/WifiStateMachine( 2511): setWifiState: enabling
        
        D/WifiStateMachine( 2511): Supplicant start successful
        
        E/WifiHW ( 2511): TMR:wifi_connect_to_supplicant wlan0
        
        E/WifiHW ( 2511): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": No such file or directory
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-21 上午1:00 （回复 Ranganath tm）
        
        This means that android is working correctly:-).
        
        As I said, couple messages before, wlan0 isnt in
        
        /data/system/wpa_supplicant
        
        I am not sure that there is even that directory.
        
        In your wpa_supplicant.conf file, you set path to interface directory, but that path doesnt exist, and of course wlan0 file isnt there.
        
        Please try with wpa_supplicant.conf that I've sent you before.
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-21 上午5:00 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        When I execute by copying content of wpa_supplicant.conf as specified by you, I am not able to lunch wpa_supplicant below are errors,
        
        rtl8192cu: MAC auto ON okay!
        
        rtl8192cu: Tx queue select: 0x05
        
        rtl8192c: Loading firmware file rtlwifi/rtl8192cufw.bin
        
        ADDRCONF(NETDEV_UP): wlan0: link is not ready
        
        mkdir[ctrl_interface]: Read-only file system
        
        But if lunch wpa_supplicant in command, after that if I turn on my wiifi from settings app its working for me.
        
        Zoran Kindly let me know where all the wpa-supplicant will stopped in HAL layer and who will the status of update init.svc.wpa_supplicant.
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-21 上午6:13 （回复 Ranganath tm）
        
        This is the problem:
        
        mkdir[ctrl_interface]: Read-only file system
        
        Could you pack this files/folders and send them to me. I will send you my email address in pm.
        
        out/target/product/{yourdevice}/system/etc/wifi/wpa_supplicant.conf
        
        out/target/product/{yourdevice}/root//init.rc
        
        out/target/product/{yourdevice}/root/init.{yourdevice}.rc
        
        out/target/product/{yourboard}/system/etc/permissions
        
        hardware/realtek
        
        hardware/libhardware_legacy
        
        external/wpa_supplicant_8
        
        kernel_imx/arch/arm/configs/imx6s_{yourdevice}_android_defconfig
        
        device/fsl/{yourdevice}/BoardConfig.mk
        
        frameworks/base/wifi/java/android/net/wifi
        
        Please list all relevant folders/files to recheck permissions!
        
        It is irrelevant, it just reports if process is running. Its a way to get info between layers in android.
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-25 上午3:59 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        Thanks For reply,
        
        Now I am able scan all wifi node from setting app and wpa_supplicant is starting successfully, but it fails to connect.
        
        Below are the logs,
        
        E/WifiConfigStore( 2511): Error parsing configurationjava.io.FileNotFoundException: /data/misc/wifi/ipconfig.txt: open failed: ENOENT (No such
        
        file or directory
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131131
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=151553
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        W/audio_hw_primary( 2178): card 0, port 0 device 0x400
        
        W/audio_hw_primary( 2178): rate 44100, channel 2 period_size 0x300
        
        I/wpa_supplicant( 3054): wlan0: SME: Trying to authenticate with 80:6c:1b:de:9b:67 (SSID='XT1068 2883' freq=2437 MHz)
        
        D/WifiStateMachine( 2501): transitionTo: destState=DisconnectingState
        
        D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter
        
        D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=ConnectModeState,active=true,pare
        
        nt=DriverStartedState
        
        D/WifiStateMachine( 2501): invokeExitMethods: DisconnectedState
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=4
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=4,startingIndex=4,Top=DisconnectingState
        
        D/WifiStateMachine( 2501): invokeEnterMethods: DisconnectingState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: DisconnectingState
        
        D/WifiStateMachine( 2501): deferMessage: msg=147462
        
        D/WifiStateMachine( 2501): Stopping DHCP and clearing IP
        
        D/CommandListener( 2173): Clearing all IP addresses on wlan0
        
        D/WifiStateMachine( 2501): setDetailed state, old =IDLE and new state=DISCONNECTED
        
        D/WifiStateMachine( 2501): transitionTo: destState=DisconnectedState
        
        D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter
        
        D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=ConnectModeState,active=true,pare
        
        nt=DriverStartedState
        
        D/WifiStateMachine( 2501): invokeExitMethods: DisconnectingState
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=4
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=4,startingIndex=4,Top=DisconnectedState
        
        D/WifiStateMachine( 2501): invokeEnterMethods: DisconnectedState
        
        D/WifiStateMachine( 2501): moveDeferredMessageAtFrontOfQueue; what=147462
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): setDetailed state, old =DISCONNECTED and new state=SCANNING
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131131
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): setDetailed state, old =SCANNING and new state=CONNECTING
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/ConnectivityService( 2501): ConnectivityChange for WIFI: DISCONNECTED/DISCONNECTED
        
        D/ConnectivityService( 2501): Attempting to switch to mobile
        
        D/ConnectivityService( 2501): Attempting to switch to BLUETOOTH_TETHER
        
        D/ConnectivityService( 2501): Attempting to switch to ETHERNET
        
        D/Nat464Xlat( 2501): requiresClat: netType=1, hasIPv4Address=false
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131131
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147461
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): processMsg: DriverStartedState
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStartedState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131131
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501):wlan0: authenticate with 80:6c:1b:de:9b:67 (try 1)
        
        handleMessage: X
        
        wlan0: authenticated
        
        wlan0: associate with 80:6c:1b:de:9b:67 (try 1)
        
        I/wpa_supplicant( 3054): wlan0: Trying to associate with 80:6c:1b:de:9b:67 (SSID='XT1068 2883' freq=2437 MHz)
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedStwlan0: RX AssocResp from 80:6c:1b:de:9b:67 (capab=0x8421 status=0 aid=3)
        
        ate
        
        D/WifiStateMachine( 2501): swlan0: associated
        
        etDetailed state, old =CONNECTING and new state=CONNECTING
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/dalvikvm( 2754): GC_CONCURRENT freed 329K, 10% free 3663K/4044K, paused 3ms+5ms, total 26ms
        
        ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
        
        I/wpa_supplicant( 3054): wlan0: Associated with 80:6c:1b:de:9b:67
        
        I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-CONNECTED - Connection to 80:6c:1b:de:9b:67 completed (auth) [id=0 id_str=]
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedState
        
        D/WifiStateMachine( 2501): setDetailed state, old =CONNECTING and new state=CONNECTING
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147459
        
        D/WifiStateMachine( 2501): processMsg: DisconnectedSwlan0: deauthenticating from 80:6c:1b:de:9b:67 by local choice (reason=3)
        
        tate
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): Network connection established
        
        D/WifiStateMachine( 2501): setDetailed state, old =CONNECTING and new state=OBTAINING_IPADDR
        
        D/WifiStateMachine( 2501): transitionTo: destState=ObtainingIpState
        
        D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter
        
        D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=2,curStateInfo: state=ConnectModeState,active=true,pare
        
        nt=DriverStartedState
        
        D/WifiStateMachine( 2501): invokeExitMethods: DisconnectedState
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: i=1,j=4
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=5
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=5,startingIndex=4,Top=ObtainingIpState
        
        D/WifiStateMachine( 2501): invokeEnterMethods: L2ConnectedState
        
        D/WifiStateMachine( 2501): invokeEnterMethods: ObtainingIpState
        
        D/Tethering( 2501): sendTetherStateChangedBroadcast 1, 0, 0
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/Wcfg80211: Calling CRDA for country: US
        
        ifiStateMachine( 2501): ObtainingIpState{ what=147462 when=-8ms obj=android.net.wifi.StateChangeResult@42090f98 }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131155
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=131155 when=-6ms arg1=1 }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131101
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=131101 when=-7ms obj=android.net.wifi.WifiStateMachine$TetherStateChange@42096700 }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): processMsg: DriverStartedState
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStartedState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=196612
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=196612 when=-7ms }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        E/wpa_supplicant( 3054): wpa_driver_nl80211_driver_cmd: failed to issue private commands
        
        I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-DRIVER-STATE HANGED
        
        D/WifiStateMachine( 2501): setSuspendOptimizationsNative: 1 false
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131131
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=131131 when=-5ms }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147468
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=147468 when=-4ms }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): processMsg: DriverStartedState
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStartedState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131084
        
        D/WifiStateMachine( 2501): processMsg: ObtainingIpState
        
        D/WifiStateMachine( 2501): ObtainingIpState{ what=131084 when=0 }
        
        D/WifiStateMachine( 2501): processMsg: L2ConnectedState
        
        D/WifiStateMachine( 2501): processMsg: ConnectModeState
        
        D/WifiStateMachine( 2501): processMsg: DriverStartedState
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStartedState
        
        D/WifiStateMachine( 2501): transitionTo: destState=SupplicantStoppingState
        
        D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter
        
        D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=DefaultState,active=true,parent=n
        
        ull
        
        D/WifiStateMachine( 2501): invokeExitMethods: ObtainingIpState
        
        D/WifiStateMachine( 2501): invokeExitMethods: L2ConnectedState
        
        D/WifiStateMachine( 2501): invokeExitMethods: ConnectModeState
        
        D/WifiStateMachine( 2501): invokeExitMethods: DriverStartedState
        
        D/WifiStateMachine( 2501): invokeExitMethods: SupplicantStartedState
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: i=0,j=1
        
        D/WifiStateMachine( 2501): moveTempStackToStateStack: X mStateStackTop=1,startingIndex=1,Top=SupplicantStoppingState
        
        D/WifiStateMachine( 2501): invokeEnterMethods: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): Stopping DHCP and clearing IP
        
        D/WifiStateMachine( 2501): setSuspendOptimizationsNative: 1 true
        
        E/wpa_supplicant( 3054): wpa_driver_nl80211_driver_cmd: failed to issue private commands
        
        D/CommandListener( 2173): Clearing all IP addresses on wlan0
        
        D/WifiStateMachine( 2501): setDetailed state, old =OBTAINING_IPADDR and new state=DISCONNECTED
        
        D/WifiStateMachine( 2501): stopping supplicant
        
        D/WifiStateMachine( 2501): setWifiState: disabling
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131083
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): deferMessage: msg=131083
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/ConnectivityService( 2501): ConnectivityChange for WIFI: DISCONNECTED/DISCONNECTED
        
        D/ConnectivityService( 2501): Attempting to switch to mobile
        
        D/ConnectivityService( 2501): Attempting to switch to BLUETOOTH_TETHER
        
        D/ConnectivityService( 2501): Attempting to switch to ETHERNET
        
        D/Nat464Xlat( 2501): requiresClat: netType=1, hasIPv4Address=false
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131143
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/BluetoothAdapter( 2754): 1105219112: getState() : mService = null. Returning STATE_OFF
        
        I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-DISCONNECTED bssid=80:6c:1b:de:9b:67 reason=3 locally_generated=1
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147460
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147462
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        D/Tethering( 2501): InitialState.processMessage what=4
        
        D/Tethering( 2501): sendTetherStateChangedBroadcast 0, 0, 0
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=131101
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): processMsg: DefaultState
        
        D/WifiStateMachine( 2501): handleMessage: X
        
        I/wpa_supplicant( 3054): wlan0: CTRL-EVENT-TERMINATING
        
        D/WifiStateMachine( 2501): handleMessage: E msg.what=147458
        
        D/WifiStateMachine( 2501): processMsg: SupplicantStoppingState
        
        D/WifiStateMachine( 2501): Supplicant connection lost
        
        D/WifiStateMachine( 2501): setWifiState: disabled
        
        D/WifiStateMachine( 2501): transitionTo: destState=InitialState
        
        D/WifiStateMachine( 2501): handleMessage: new destination call exit/enter
        
        D/WifiStateMachine( 2501): setupTempStateStackWithStatesToEnter: X mTempStateStackCount=1,curStateInfo: state=DefaultState,active=true,parent=n
        
        ull
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-25 上午4:34 （回复 Ranganath tm）
        
        Hi Ranganath,
        
        Do you have ethernet cable connected to the device?
        
        Do you supply enough current to the device?
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-25 上午5:08 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        No I don't have ethernet cable connected to device, but the wifi is connected via usb hub for my device.
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-25 上午7:44 （回复 Ranganath tm）
        
        Hi Ranganath,
        
        Could you try without hub?
        
        Have you build driver as modules? (remember return 0; for insmod in driver)
        
        Could you add LOG to see what is the command?
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-25 下午9:53 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        I cannot try without hub, because I have issues with usb wifi dongle,
        
        Yes I build driver as module and I am returning 0 form that.
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-26 上午12:15 （回复 Ranganath tm）
        
        Hi Ranganath,
        
        Please read more carefully what I write to you, we are going in circle.
        
        "If you do not use modules for rtl wifi, remember to add return 0; in wifi_realtek.c functions:
        
        insmod,rmmod,load_driver,wifi_load_driver,unload_driver,wifi_unload_driver."
        
        and
        
        "PaNiC Random Rant (or how we used to call it: .plan): Porting WiFi drivers to Android"
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-26 上午12:23 （回复 Ranganath tm）
        
        Hi Zoran,
        
        When I run the below command I am not getting anu dhcpd results:
        
        root@sabresd_6dq:/ # getprop | grep wlan
        
        [wifi.interface]: [wlan0]
        
        [wlan.driver.status]: [ok]
        
        Thanks And Regards,
        
        Ranganath TM
        
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        Re: wifi binding on imx6sl evk based board
        
        Zoran Lukic 2014-11-27 上午3:46 （回复 Ranganath tm）
        
        Hello Ranganath,
        
        dhcp is run as service ini init script. Make sure the setup is correct and permissions are ok.
        
        root@shd_6sl:/ # getprop | grep wlan
        
        [wifi.ap.interface]: [wlan0]
        
        [wifi.interface]: [wlan0]
        
        [wlan.driver.status]: [ok]
        
        [wlan.interface]: [wlan0]
        
        root@shd_6sl:/ # getprop | grep dhcp
        
        [dhcp.eth0.dns1]: [xxx.xxx.1.1]
        
        [dhcp.eth0.dns2]: []
        
        [dhcp.eth0.dns3]: []
        
        [dhcp.eth0.dns4]: []
        
        [dhcp.eth0.domain]: [lan]
        
        [dhcp.eth0.gateway]: [192.168.2.1]
        
        [dhcp.eth0.ipaddress]: [192.168.2.113]
        
        [dhcp.eth0.leasetime]: [86400]
        
        [dhcp.eth0.mask]: [255.255.255.0]
        
        [dhcp.eth0.pid]: [2644]
        
        [dhcp.eth0.reason]: [RENEW]
        
        [dhcp.eth0.result]: [ok]
        
        [dhcp.eth0.server]: [192.168.2.1]
        
        [dhcp.eth0.vendorInfo]: []
        
        [init.svc.dhcpcd_eth0]: [running]
        
        BR,
        
        Zoran
        
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        Re: wifi binding on imx6sl evk based board
        
        Ranganath tm 2014-11-27 上午4:20 （回复 Zoran Lukic）
        
        Hi Zoran,
        
        Thanks for your help,
        
        Wifi is working now, but it only connect for non-secured network without password, it obtains IPaddress for secured network but it fails to connect(WPA/WPA2 PSK).
        
        Thanks And Regards,
        
        Ranganath TM

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