Re: HID device lying about Usage

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Hi,

On Fri, Jan 29, 2010 at 06:10:59AM -0800, Greg KH wrote:

> > > >  - Invent a new quirk that prevents the device from being connected to
> > > >    anything but hidraw.

> > > If you really want to send HID commands to it.  Does it accept them?
> > > Odds are, it doesn't.

> > I have a working protocol implementation on top of hidraw.

> Then hey, you answered your own question :)

Not quite. The protocol works, but the input layer still interprets the
data coming from the device, which results in spurious keyboard input
and/or the computer going to sleep or shutting down (because the HID
spec has "sleep" and "power" buttons defined).

If I was to add the IGNORE quirk, then I'd not get the hidraw device
anymore, so I'd have to move my protocol stack over to libusb; if I were
to create a new quirk, then I'd have to get that accepted into the
kernel to get it somewhat futureproof.

   Simon
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