linux usb虚拟网卡（NCM）_linux usb ncm

1. kernel config

<M>   USB Gadget precomposed configurations

    <M>     Ethernet Gadget (with CDC Ethernet support)

        <M>     Network Control Model (NCM) support

2. build modules

make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- modules

  LD [M]  drivers/usb/gadget/function/u_ether.ko

  LD [M]  drivers/usb/gadget/function/usb_f_ncm.ko

  LD [M]  drivers/usb/gadget/legacy/g_ncm.ko

  LD [M]  drivers/usb/gadget/libcomposite.ko

3. test on ubuntu

ubuntu ver: ubuntu 14(kernel 3.13)

test mc40 usb2.0 device in haps

3.1 config & build module, then copy these ko to ~/repo-usb/rootfs/rootfs-m/opt/ko/usb/gadget