kernel-packages team mailing list archive

[Nicolas <co-lpad@xxxxxxxxxxx>]

To force hid-generic, remove hid-rmi, load hid-generic and run:

echo echo 3 06cb a001 0 | sudo tee /sys/module/hid_generic/drivers/hid
\:hid-generic/new_id

By the way, the touchpad has a Synaptics S3203B chip.

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https://bugs.launchpad.net/bugs/1437759

Title:
  [Lenovo Miix] Synaptic/ITE Tech touchpad (06cb:a001) cannot be
  configured by hid-rmi

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Problem:
  The touchpad in the dock of the Lenovo Miix 2 11 tablet does not work. It is handled by hid-rmi, which fails to configure the device:

  kernel: [ 3007.388388] input: ITE Tech. Inc. ITE Device(8595) as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.3/1-3.3:1.0/0003:06CB:A001.0008/input/input18
  kernel: [ 3007.442088] hid-generic 0003:06CB:A001.0008: input,hiddev0,hidraw2: USB HID v1.10 Keyboard [ITE Tech. Inc. ITE Device(8595)] on usb-0000:00:14.0-3.3/input0
  kernel: [ 3007.521067] hid-rmi 0003:06CB:A001.0009: failed to write hid report (-38)
  kernel: [ 3007.521074] hid-rmi 0003:06CB:A001.0009: rmi_set_page: set page failed: -38.
  kernel: [ 3007.521077] hid-rmi 0003:06CB:A001.0009: failed to set page select to 0.
  kernel: [ 3007.523194] input: ITE Tech. Inc. ITE Device(8595) as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.3/1-3.3:1.1/0003:06CB:A001.0009/input/input19
  kernel: [ 3007.523546] hid-rmi 0003:06CB:A001.0009: input,hiddev0,hidraw3: USB HID v1.10 Pointer [ITE Tech. Inc. ITE Device(8595)] on usb-0000:00:14.0-3.3/input1
  kernel: [ 3007.523552] hid-rmi 0003:06CB:A001.0009: Device failed to be properly configured

  
  Ubuntu 15.04 Beta (but same problem with 14.10)
  Kernel: Linux miix 3.19.0-10-generic #10-Ubuntu SMP Mon Mar 23 16:16:45 UTC 2015 i686 i686 i686 GNU/Linux

  
  The Keyboard (which works) and the touchpad are connected as one USB device with two interfaces:

  Bus 001 Device 015: ID 06cb:a001 Synaptics, Inc. 
  Device Descriptor:
    bLength                18
    bDescriptorType         1
    bcdUSB               2.00
    bDeviceClass            0 (Defined at Interface level)
    bDeviceSubClass         0 
    bDeviceProtocol         0 
    bMaxPacketSize0        64
    idVendor           0x06cb Synaptics, Inc.
    idProduct          0xa001 
    bcdDevice            0.03
    iManufacturer           1 ITE Tech. Inc.
    iProduct                2 ITE Device(8595)
    iSerial                 0 
    bNumConfigurations      1
    Configuration Descriptor:
      bLength                 9
      bDescriptorType         2
      wTotalLength           59
      bNumInterfaces          2
      bConfigurationValue     1
      iConfiguration          0 
      bmAttributes         0xa0
        (Bus Powered)
        Remote Wakeup
      MaxPower              100mA
      Interface Descriptor:
        bLength                 9
        bDescriptorType         4
        bInterfaceNumber        0
        bAlternateSetting       0
        bNumEndpoints           1
        bInterfaceClass         3 Human Interface Device
        bInterfaceSubClass      1 Boot Interface Subclass
        bInterfaceProtocol      1 Keyboard
        iInterface              0 
          HID Device Descriptor:
            bLength                 9
            bDescriptorType        33
            bcdHID               1.10
            bCountryCode            0 Not supported
            bNumDescriptors         1
            bDescriptorType        34 Report
            wDescriptorLength     163
           Report Descriptors: 
             ** UNAVAILABLE **
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x81  EP 1 IN
          bmAttributes            3
            Transfer Type            Interrupt
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0040  1x 64 bytes
          bInterval               4
      Interface Descriptor:
        bLength                 9
        bDescriptorType         4
        bInterfaceNumber        1
        bAlternateSetting       0
        bNumEndpoints           1
        bInterfaceClass         3 Human Interface Device
        bInterfaceSubClass      1 Boot Interface Subclass
        bInterfaceProtocol      2 Mouse
        iInterface              1 ITE Tech. Inc.
          HID Device Descriptor:
            bLength                 9
            bDescriptorType        33
            bcdHID               1.10
            bCountryCode            0 Not supported
            bNumDescriptors         1
            bDescriptorType        34 Report
            wDescriptorLength     133
           Report Descriptors: 
             ** UNAVAILABLE **
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x82  EP 2 IN
          bmAttributes            3
            Transfer Type            Interrupt
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0040  1x 64 bytes
          bInterval               4
  Device Status:     0x0000
    (Bus Powered)

  
  Workaround:
  The touchpad works with hid-generic, if it is forces to handle the device. Yet, multitouch and dragging does not work.

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