From: Bill Gatliff <bgat@billgatliff.com>
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>,
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
Date: Sun, 12 Nov 2006 21:30:44 -0600 [thread overview]
Message-ID: <4557E6E4.5050307@billgatliff.com> (raw)
In-Reply-To: <200611111541.34699.david-b@pacbell.net>
David:
David Brownell wrote:
>I know there have been discussions about standardizing GPIOs before,
>but nothing quite "took". One of the more recent ones was
>
> http://marc.theaimsgroup.com/?l=linux-kernel&m=110873454720555&w=2
>
>Below, find what I think is a useful proposal, trivially implementable on
>many ARMs (at91, omap, pxa, ep93xx, ixp2000, pnx4008, davinci, more) as well
>as the new AVR32.
>
>Compared to the proposal above, key differences include:
>
>
Excellent proposal, I think it should be implemented as-is. I don't
care that this proposal only works for "real" GPIOs, and doesn't provide
for a userspace API.
At its worst, this proposal offers an intermediate step towards a
framework that can do both synchronous/real and asynchronous GPIO
control. At its best, provides a starting point for that framework AND
a much-needed unification in an API that could really use cleaning up
TODAY. No downside, in my opinion.
b.g.
--
Bill Gatliff
bgat@billgatliff.com
next prev parent reply other threads:[~2006-11-13 3:30 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-11 23:41 [patch/rfc 2.6.19-rc5] arch-neutral GPIO calls David Brownell
2006-11-12 1:27 ` H. Peter Anvin
2006-11-12 3:04 ` David Brownell
2006-11-12 3:15 ` H. Peter Anvin
2006-11-13 3:30 ` Bill Gatliff [this message]
2006-11-13 17:38 ` Paul Mundt
2006-11-13 17:56 ` Thiago Galesi
2006-11-13 19:25 ` David Brownell
2006-11-13 19:50 ` Bill Gatliff
2006-11-13 18:19 ` Bill Gatliff
2006-11-13 18:38 ` Paul Mundt
2006-11-13 19:29 ` Bill Gatliff
2006-11-13 20:15 ` Paul Mundt
2006-11-20 21:49 ` David Brownell
2006-11-21 3:44 ` Bill Gatliff
2006-11-21 4:45 ` David Brownell
2006-11-21 5:09 ` Bill Gatliff
2006-11-21 5:35 ` David Brownell
2006-11-21 6:09 ` Paul Mundt
2006-11-21 18:13 ` David Brownell
2006-11-22 3:36 ` Bill Gatliff
2006-11-22 3:55 ` Paul Mundt
2006-11-22 4:45 ` [Bulk] " David Brownell
2006-11-22 4:47 ` Bill Gatliff
2006-11-21 15:57 ` Bill Gatliff
2006-11-23 0:40 ` David Brownell
2006-11-30 6:57 ` pHilipp Zabel
2006-11-30 7:29 ` pHilipp Zabel
2006-11-30 22:24 ` David Brownell
2006-11-20 22:15 ` David Brownell
2006-11-21 2:56 ` Bill Gatliff
2006-11-13 20:00 ` David Brownell
2006-11-13 21:30 ` Paul Mundt
2006-11-14 3:21 ` David Brownell
2006-11-13 19:21 ` David Brownell
2006-11-13 19:43 ` Bill Gatliff
2006-11-13 20:15 ` David Brownell
2006-11-13 20:26 ` Bill Gatliff
2006-11-13 20:53 ` David Brownell
2006-11-13 20:58 ` Bill Gatliff
2006-11-13 20:29 ` Bill Gatliff
2006-11-16 14:54 ` [RFC/PATCH] arch-neutral GPIO calls: AVR32 implementation Haavard Skinnemoen
2006-11-20 21:47 ` David Brownell
2006-11-21 3:11 ` Bill Gatliff
2006-11-21 5:06 ` David Brownell
2006-11-21 5:51 ` Bill Gatliff
2006-11-21 18:19 ` David Brownell
2006-11-21 9:11 ` Haavard Skinnemoen
2006-11-21 19:03 ` David Brownell
2006-11-28 12:36 ` [RFC/PATCH] arch-neutral GPIO calls: AVR32 implementation [take 2] Haavard Skinnemoen
2006-11-30 19:05 ` David Brownell
2006-12-01 9:51 ` Haavard Skinnemoen
2006-12-20 21:04 ` [patch 2.6.20-rc1 0/6] arch-neutral GPIO calls David Brownell
2006-12-20 21:08 ` [patch 2.6.20-rc1 1/6] GPIO core David Brownell
2006-12-27 17:49 ` Pavel Machek
2006-12-28 22:05 ` David Brownell
2006-12-29 0:27 ` Pavel Machek
2006-12-30 1:18 ` David Brownell
2007-01-01 20:55 ` Pavel Machek
2007-01-01 21:27 ` David Brownell
2007-01-02 14:18 ` Pavel Machek
2006-12-20 21:09 ` [patch 2.6.20-rc1 2/6] OMAP GPIO wrappers David Brownell
2006-12-20 21:11 ` [patch 2.6.20-rc1 3/6] AT91 " David Brownell
2006-12-21 6:10 ` Andrew Morton
2006-12-21 6:45 ` David Brownell
2006-12-20 21:12 ` [patch 2.6.20-rc1 4/6] PXA " David Brownell
2006-12-21 6:12 ` Andrew Morton
2006-12-21 6:44 ` David Brownell
2006-12-21 14:27 ` Nicolas Pitre
2006-12-21 15:03 ` pHilipp Zabel
2006-12-21 17:25 ` Nicolas Pitre
2006-12-21 19:32 ` pHilipp Zabel
2006-12-21 20:10 ` Nicolas Pitre
2006-12-21 20:32 ` Bill Gatliff
2006-12-22 6:53 ` pHilipp Zabel
2006-12-28 20:47 ` David Brownell
2006-12-30 2:15 ` Nicolas Pitre
2006-12-30 2:38 ` David Brownell
2007-01-01 19:43 ` David Brownell
2006-12-30 1:13 ` David Brownell
2006-12-21 19:25 ` David Brownell
2006-12-27 17:53 ` Pavel Machek
2006-12-28 20:48 ` David Brownell
2006-12-28 20:50 ` Pavel Machek
2006-12-28 20:53 ` Pavel Machek
2006-12-20 21:13 ` [patch 2.6.20-rc1 5/6] SA1100 " David Brownell
2006-12-21 6:13 ` Andrew Morton
2006-12-22 7:16 ` pHilipp Zabel
2006-12-22 15:05 ` Nicolas Pitre
2006-12-30 2:21 ` David Brownell
2006-12-30 3:15 ` Nicolas Pitre
2006-12-30 6:01 ` David Brownell
2006-12-30 13:59 ` pHilipp Zabel
2006-12-30 15:08 ` Russell King
2006-12-23 11:37 ` Russell King
2006-12-23 20:39 ` David Brownell
2006-12-27 18:24 ` Pavel Machek
2006-12-20 21:14 ` [patch 2.6.20-rc1 6/6] S3C2410 " David Brownell
2006-12-21 10:33 ` Arnaud Patard
2006-12-21 15:29 ` pHilipp Zabel
2006-12-23 11:40 ` Russell King
2006-12-20 23:30 ` [patch 2.6.20-rc1 0/6] arch-neutral GPIO calls Håvard Skinnemoen
2006-12-20 23:46 ` David Brownell
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