HID generic-bluetooth driver

HID generic-bluetooth driver

[David Herrmann]

Hi

I am currently working on a bluetooth HID device driver during GSoC
this summer and have a small problem. My dummy HID-driver does not get
bound on new devices. My dummy driver is available at:
https://github.com/dvdhrm/xwiimote/blob/master/driver/src/hid-nintendo.c

If a new bluetooth device with exactly these PID/VID values connects,
the generic-bluetooth HID driver gets bound instead of my hid-nintendo
driver. I checked /dev/hidrawX and it returns the same PID/VID values
as I specified in my driver so these are correct.
Also, if I use /sys/class/hid/drivers/generic-bluetooth/unbind and
.../nintendo/bind I can bind my driver manually to that device.

What can I do to lower the priority of generic-bluetooth or to push my
driver in front of generic-bluetooth?

Regards
David

Re: HID generic-bluetooth driver

[Christoph Fritz]

On Sun, 2011-05-08 at 12:16 +0200, David Herrmann wrote:
> Hi
> 
> I am currently working on a bluetooth HID device driver during GSoC
> this summer and have a small problem. My dummy HID-driver does not get
> bound on new devices. My dummy driver is available at:
> https://github.com/dvdhrm/xwiimote/blob/master/driver/src/hid-nintendo.c
> 
> If a new bluetooth device with exactly these PID/VID values connects,
> the generic-bluetooth HID driver gets bound instead of my hid-nintendo
> driver. I checked /dev/hidrawX and it returns the same PID/VID values
> as I specified in my driver so these are correct.
> Also, if I use /sys/class/hid/drivers/generic-bluetooth/unbind and
> .../nintendo/bind I can bind my driver manually to that device.
> 
> What can I do to lower the priority of generic-bluetooth or to push my
> driver in front of generic-bluetooth?

Hi David,

 you can add it to hid_have_special_driver[] (drivers/hid/hid-core.c).

Thanks,
 -- chf

Re: HID generic-bluetooth driver

[David Herrmann]

On Sun, May 8, 2011 at 1:52 PM, Christoph Fritz
<chf.fritz@googlemail.com> wrote:
>  you can add it to hid_have_special_driver[] (drivers/hid/hid-core.c).
>

Since I cannot see any MODULE_DEVICE_TABLE() entry there, I guess I
can't extend this table on runtime?

Adding my device there helped. Thank you.

>
> Thanks,
>  -- chf

Thanks
David
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Re: HID generic-bluetooth driver

[Christoph Fritz]

On Sun, May 08, 2011 at 02:20:40PM +0200, David Herrmann wrote:
> On Sun, May 8, 2011 at 1:52 PM, Christoph Fritz
> <chf.fritz@googlemail.com> wrote:
> >  you can add it to hid_have_special_driver[] (drivers/hid/hid-core.c).
> >
> 
> Since I cannot see any MODULE_DEVICE_TABLE() entry there, I guess I
> can't extend this table on runtime?

No you can't extend this table at runtime.

> Adding my device there helped. Thank you.
> 

You are welcome.

 happy hacking,
  -- chf

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