Chrome OS beta 频道上的三星 ChromeBook 3。开发者模式已启用。
USB 键盘工作正常，但 USB 鼠标无法工作。 （我只有一个来测试，但在其他 Linux PC 上工作正常）
外围设备似乎已正确识别，但是这是相关的 dmesg：
[47203.581103] usb 1-2: new low-speed USB device number 11 using xhci_hcd
[47203.749877] usb 1-2: New USB device found, idVendor=09da, idProduct=000a
[47203.749899] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[47203.749912] usb 1-2: Product: PS/2+USB Mouse
[47203.749921] usb 1-2: Manufacturer: A4Tech
[47203.750569] usb 1-2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
[47203.756104] platform vpd: Driver vpd requests probe deferral
[47203.756157] platform vpd: Driver vpd requests probe deferral