配置buildroot

  1. Target packages > System tools 勾选android-tools adb adbd
    这个程序需要openssl,所以会自动下载编译openssl

启动脚本

  1. #!/bin/sh

modprobe g_ffs idVendor=0x18d1 idProduct=0x4e42 iSerialNumber=”f1c_adb”
mkdir -p /dev/usb-ffs/adb
mount -t functionfs adb /dev/usb-ffs/adb -o uid=2000,gid=2000
adbd&

  1. 下边是输出信息 
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    [ 1015.671170] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
    [ 1015.683059] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
    [ 1015.688989] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
    [ 1015.704830] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
    [ 1015.713091] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [ 1015.720406] usb usb1: Product: MUSB HDRC host driver
    [ 1015.725414] usb usb1: Manufacturer: Linux 5.4.99 musb-hcd
    [ 1015.730799] usb usb1: SerialNumber: musb-hdrc.1.auto
    [ 1015.738779] hub 1-0:1.0: USB hub found
    [ 1015.742642] hub 1-0:1.0: 1 port detected
    [ 1015.768938] using random self ethernet address
    [ 1015.773397] using random host ethernet address
    [ 1015.778010] using random self ethernet address
    [ 1015.782453] using random host ethernet address
    [ 1015.787926] usb0: HOST MAC 8a:c5:4f:1e:6f:18
    [ 1015.792298] usb0: MAC d2:d0:89:99:11:ec
    [ 1015.796436] g_ffs gadget: g_ffs ready
    # [ 1017.200076] g_ffs gadget: high-speed config #2: FunctionFS + ECM


    # adbd&
    # install_listener[ 1056.721906] read descriptors
    ('tcp:5037','*sm[ 1056.725214] read strings
    artsocket*')
    [ 1056.729168] using random self ethernet address
    [ 1056.734713] using random host ethernet address
    [ 1056.739196] using random self ethernet address
    [ 1056.743630] using random host ethernet address
    [ 1056.749049] usb0: HOST MAC b6:d2:0d:05:55:96
    [ 1056.753421] usb0: MAC fa:a3:f6:8f:4d:72
    [ 1056.757540] g_ffs gadget: g_ffs ready
    [ 1057.234908] g_ffs gadget: high-speed config #2: FunctionFS + ECM

ubuntu中安装adb工具

  1. sudo apt install adb

  2. adb devices 列出adb设备
    $ adb devices
    List of devices attached
    f1c_adb device

  3. 用lsusb可以看到是一个google Nexus 7 的android设备

    • ubuntu上查看usb设备 
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      $ lsusb
      Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
      Bus 001 Device 002: ID 8087:0a2b Intel Corp. 
      Bus 001 Device 033: ID 18d1:4e42 Google Inc. Nexus 7 (debug)
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    • 在板子上查看usb设备会出现一个usb网卡 
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      # lsusb
      Bus 001 Device 001: ID 1d6b:0002
      # ifconfig -a
      usb0      Link encap:Ethernet  HWaddr 9A:A2:75:F3:AD:7F  
              BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

  4. 连接adb设备

    • $ adb connect f1c_adb:5037
      unable to connect to f1c_adb:5555: Name or service not known
      [ cannot open /dev/ptmx - No such file or directory ]
      这是因为我把虚拟终端都给去掉了 只需要把下边一项勾上即可
      [*] Unix98 PTY support

    • 查看一下/dev下的文件

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      # ls /dev
      audio            mtd0             pts              ttyS2
      bus              mtd0ro           random           ttyS3
      console          mtd1             rfkill           ttyS4
      cpu_dma_latency  mtd1ro           rtc0             ttyS5
      dsp              mtd2             shm              ttyS6
      fd               mtd2ro           snd              ttyS7
      full             mtd3             spidev1.0        urandom
      gpiochip0        mtd3ro           stderr           usb-ffs
      i2c-0            mtdblock0        stdin            watchdog
      kmsg             mtdblock1        stdout           watchdog0
      log              mtdblock2        tty              zero
      mem              mtdblock3        ttyS0
      mixer            null             ttyS1

使用adb上传下载文件

  1. #adb shell 即可像普通终端那样操作了
  2. adb push ./test /opt 上传文件到板子上/opt文件夹
  3. adb pull /opt/test ~ 下载文件到本地用户主目录