linux-kernel - Re: Can you use the USB HID interface within a driver?

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Date:	Sun, 02 Nov 2008 09:20:18 +1000
From:	Adam Nielsen <a.nielsen@...kadi.net>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	LKML Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: Can you use the USB HID interface within a driver?

> For 2.6.28, the HID code has been completely refactored, and converted 
> into a proper bus, making it possible to write driver easily in a way that 
> the driver implements only parts where device deviates from the HID 
> standard, and lets the rest to be handled by generic code. I guess this is 
> what you are looking for?

Yes, that sounds like exactly what I'm after!  This device seems to be 
HID with a custom protocol over the top, so presumably I can let the HID 
driver handle all the USB initialisation and just focus on the protocol.

> Please look at drivers/hid in 2.6.28-rc1 or newer. There are quite a 
> couple of drivers already using this new infrastructure.

Great, I'll have a look now - thanks!

> If you have any further questions, I'll be happy to help you, but I will 
> be completely offline until 11th November, sorry.

Thanks for that!  I'll see how I go.  If there are existing drivers I 
can use as examples, hopefully I should be okay for the most part.

Cheers,
Adam.

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