如果要調試的設備在ubuntu可以正常使用，基本kernel裏面會自帶驅動。
step1：先將此設備插入ubuntu，如下所示：
$ 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
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
$ 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
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 002: ID 04fc:05d8 Sunplus Technology Co., Ltd Wireless keyboard/mouse多出了一個設備，VID-PID是04fc:05d8。
step2：search kernel with the VID and PID
step3：you will get following results:
./drivers/hid/hid-core.c: { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
./drivers/hid/hid-ids.h:#define USB_DEVICE_ID_SUNPLUS_WDESKTOP 0x05d8
./drivers/hid/hid-sunplus.c: { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },step4：vim ./drivers/hid/Makefile
step5：make sure CONFIG_HID_SUNPLUS=y in config file
step6：重新編譯後此設備可以正常工作，已經在P_D_3_1_8上測試成功。
