Message-ID: <455691CD.9080707@zytor.com>
Date: Sat, 11 Nov 2006 19:15:25 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: David Brownell <david-b@pacbell.net>
CC: Linux Kernel list <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@osdl.org>, Andrew Victor <andrew@sanpeople.com>,
       Bill Gatliff <bgat@billgatliff.com>,
       Haavard Skinnemoen <hskinnemoen@atmel.com>, jamey.hicks@hp.com,
       Kevin Hilman <khilman@mvista.com>, Nicolas Pitre <nico@cam.org>,
       Russell King <rmk@arm.linux.org.uk>, Tony Lindgren <tony@atomide.com>
Subject: Re: [patch/rfc 2.6.19-rc5] arch-neutral GPIO calls
References: <200611111541.34699.david-b@pacbell.net> <45567868.8020405@zytor.com> <200611111904.36817.david-b@pacbell.net>
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David Brownell wrote:
> 
> I suspect that userspace GPIO accessors should only be written once
> though, and they're going to be in the "don't care" category.  So
> lack of such a "message compatible" GPIO call set might reasonably
> hold up merging that sort of (configfs?) interface.
> 

Yes, the userspace interface is by far the biggest issue here.

	-hpa
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