Re: [RFC 0/1] User-space I/O driver for HID subsystem (Bluetooth-LE HIDP)

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

On Friday, March 16, 2012 10:57:38 AM Marcel Holtmann wrote:
> Hi Joao,
> 
> > > I have hacked together a small driver which allows user-space I/O
> > > drivers to provide HID devices. This is needed for
> > > Bluetooth-Low-Energy HID devices as the Bluetooth-LE protocol is
> > > parsed in user-space.
> > > 
> > > I have only compile-tested this driver, I haven't run it yet. It's
> > > just an proposal how this could be implemented. It should also work
> > > as hint to the BT-LE developers how such an interface will
> > > look-like.
> > 
> > First of all, thanks for your effort. I haven't looked at the code
> > yet, but thinking again about the problem and since it's very similar
> > to uinput, would adding another ioctl to uinput that receives the HID
> > descriptor and put uinput in a "HID mode" be sufficient? This way we
> > could increase code reuse and ease maintainance, I guess. What do you
> > think?
> 
> I am really against this. Input subsystem and HID subsystem are two
> different things. Don't try to combine them.
> 
> You would also mess up the layering here. HID uses input, but input does
> not require HID.
> 

Completely agree with Marcel here.

Thanks.

-- 
Dmitry