lkml.org 
[lkml]   [2015]   [Jan]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: NULL pointer dereference in i2c-hid
On 12/24/2014 03:53 PM, Gabriele Mazzotta wrote:
[...snip...]
>>>> Also, if you can get the firmware id from your touchpad that would also
>>>> be useful.
>>>>
>>>> $ sudo ./rmihidtool -f /dev/hidraw0
>>> firmware id: 1522295
>> Thanks, I will see if I can get any additional information on this.
>>
>> Andrew
> Hi,
>
> I think I found the source of the problem.
>
> $ ./rmihidtool /dev/hidraw1 -r 0x50 1
> 0x01 #PalmDetect Interrupt Enable, right?
Yes, 0x50 does appear to be the address of the palm detect interrupt
enable register.
> $ ./rmihidtool /dev/hidraw1 -w 0x50 0 #Disable PalmDetect Interrupt
>
> It makes more sense now that widths greater than 12 trigger the bug.
That is weird behavior and I haven't seen anything like that before. I
will file a bug to see if firmware has any idea why this is happening.
>
> Gabriele
>
Andrew


\
 
 \ /
  Last update: 2015-01-09 01:21    [W:0.575 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site