Re: NULL pointer dereference in i2c-hid

[Andrew Duggan]

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
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