Re: linux kernel HID problem with Saitek X52 Pro Flight System

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Tue, Sep 08, 2009 at 07:42:02PM +0200, Jiri Kosina wrote:
> 
> [ added some CCs
> 
>   In short -- Sergey has problem with his joystick not being properly 
>   handled starting with 2.6.30 kernel (it used to work with 2.6.29 and 
>   older). The problem is that joydev is not created. ]
> 
> 
> On Mon, 7 Sep 2009, Sergey Kolesnikov wrote:
> 
> > Here goes /proc/bus/input/devices dump (VID/PID included):
> > 
> > I: Bus=0003 Vendor=06a3 Product=0762 Version=0111
> > N: Name="Saitek Saitek X52 Pro Flight Control System"
> > P: Phys=usb-0000:00:1d.7-6.3/input0
> > S: Sysfs=/devices/pci0000:00/0000:00:1d.7/usb7/7-6/7-6.3/7-6.3:1.0/input/input10
> > U: Uniq=
> > H: Handlers=event6
> > B: EV=1b
> > B: KEY=7f ffffffff00000000 0 0 0 0

I find it doubtful that the device actually has 39 buttons...

> > B: ABS=3000003007f
> > B: MSC=10
> 
> If I got my math right, this means that the KEY bitmask includes digitizer 
> BTN_DIGI/BTN_TOOL_PEN, right?
> 
> Sergey, I believe that reverting commit d07a9cba6b (you can do so using 
> git revert d07a9cba6b) will fix your joystick, is that correct?

While this will get Sergey's joystick back I think that HID should be
more careful in assigning the BTN_* events. Right now it starts at a
certain type and goes forward without checking if range (joystick,
gamepad, etc) is exhausted or not.

-- 
Dmitry