linux-kernel - REGRESSION: 2.6.24: false double-clicks from USB mouse

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Date:	Sun, 02 Dec 2007 12:04:45 -0500
From:	Mark Lord <lkml@....ca>
To:	dmitry.torokhov@...il.com, rubini@...vis.unipv.it,
	linux-input@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>, jkosina@...e.cz,
	linux-usb@...r.kernel.org
Subject: REGRESSION: 2.6.24:  false double-clicks from USB mouse

Mark Lord wrote:
> Mark Lord wrote:
>> I've only just recently tried running 2.6.24 on my main machine.
>> And it appears that I'll have to go back to 2.6.23,
>> because the USB mouse is not working correctly.
>>
>> Single-clicking on things with 2.6.24 very frequently gives a 
>> "double-click".
>> This does not happen with 2.6.23.8.
>>
>> I wonder what broke it?
>>
>> I've grabbed mousedev.c from 2.6.23 and inserted that in place
>> of the updated 2.6.24 source, but no change.  So it's not that file.
> ...
> 
> Mmm.. reverting the entire drivers/hid directory to that from 2.6.23
> seems to have fixed the problem, so we now know it's in there somewhere.
> 
> Jiri: do you have any suggestions that might be more specific than that ?
..

Here's my USB mouse:


Bus 005 Device 004: ID 046d:c016 Logitech, Inc. M-UV69a Optical Wheel Mouse
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x046d Logitech, Inc.
  idProduct          0xc016 M-UV69a Optical Wheel Mouse
  bcdDevice            3.40
  iManufacturer           1 Logitech
  iProduct                2 Optical USB Mouse
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    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 Devices
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.10
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      52
         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     0x0004  1x 4 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)

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