私はBananaPiでDebian Wheezyを実行しています。
カーネルをコンパイルしただけで、キーボードが端末で動作しました（このように呼び出された場合）。ただし、「apt-get install task-lxde-desktop」を使用してデスクトップインターフェイスをインストールした後、キーボードは応答しなくなります。ここに私のdmesgとlsusbがあります。 lsusbがどれほど奇妙に見えるかを確認してください。
root@bananapi:~# lsusb
Bus 003 Device 003: ID 04ca:002f Lite-On Technology Corp.
Bus 004 Device 003: ID 2808:81c9
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
root@bananapi:~# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
root@bananapi:~# dmesg (last part of it)
[ 301.255226] usb 4-1: new full-speed USB device number 3 using ohci-platform
[ 301.470215] usb 4-1: No LPM exit latency info found, disabling LPM.
[ 301.494962] hid-generic 0003:2808:81C9.0005: hiddev0: USB HID v1.10 Device [Focaltech Systems FT5926 MultiTouch] on usb-1c1c400.usb-1/input0
[ 301.504628] input: Focaltech Systems FT5926 MultiTouch as /devices/platform/soc@01c00000/1c1c400.usb/usb4/4-1/4-1:1.1/0003:2808:81C9.0006/input/input3
[ 301.504694] hid-multitouch 0003:2808:81C9.0006: input: USB HID v1.10 Device [Focaltech Systems FT5926 MultiTouch] on usb-1c1c400.usb-1/input1
[ 381.565209] usb 3-1: new low-speed USB device number 3 using ohci-platform
[ 381.799992] input: Lite-On Technology Corp. USB Multimedia Keyboard as /devices/platform/soc@01c00000/1c14400.usb/usb3/3-1/3-1:1.0/0003:04CA:002F.0007/input/input4
[ 381.855227] hid-generic 0003:04CA:002F.0007: input: USB HID v1.10 Keyboard [Lite-On Technology Corp. USB Multimedia Keyboard] on usb-1c14400.usb-1/input0
[ 381.867586] input: Lite-On Technology Corp. USB Multimedia Keyboard as /devices/platform/soc@01c00000/1c14400.usb/usb3/3-1/3-1:1.1/0003:04CA:002F.0008/input/input5
[ 381.925522] hid-generic 0003:04CA:002F.0008: input,hiddev0: USB HID v1.10 Device [Lite-On Technology Corp. USB Multimedia Keyboard] on usb-1c14400.usb-1/input1
[ 403.888550] usb 4-1: USB disconnect, device number 3
[ 405.680680] usb 3-1: USB disconnect, device number 3