linux-kernel - Re: [PATCH v2 2/5] Input: sentelic - enabling absolute coordinates output for newer hardware

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Date:	Fri, 23 Mar 2012 10:01:49 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tai-hwa Liang <avatar@...telic.com>
Cc:	Oskari Saarenmaa <os@...u.fi>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/5] Input: sentelic - enabling absolute coordinates
 output for newer hardware

> On the other hand, the FSP found on UX21/31 doesn't have hardware capability
> register other than PnP ID, which means that we'll have to figure out an
> alternative approach to identify such pad correctly; otherwise, blindly
> adding INPUT_PROP_BUTTONPAD property may compatability issues amongst
> existing FSPs.

If its tied to specific boards then the DMI data from the BIOS may be
what you need for that. It'll let you identify boards/vendors.

Alan
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