From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ben Nizette <bn@niasdigital.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>,
Grant Likely <grant.likely@secretlab.ca>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Lee Jones <lee.jones@linaro.org>,
Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH 1/2] gpio: add pin biasing and drive mode to gpiolib
Date: Mon, 18 Apr 2011 09:19:02 +0100 [thread overview]
Message-ID: <20110418091902.13345132@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <3F5641E3-C443-4541-9FDA-24D215597C1F@niasdigital.com>
> gpiolib handles input and output, high and low because that's all that could reasonably be expected to a) always work and b) be changed at run time in the driver.
Imagine if file systems only handled 8.3 filenames because that's all
that could reasonably be expected to a) always work !
> So in short - what's the use case? Which driver requires this?
>
Also your comment re simply in or out on or off is incorrect. Pins may
also be in use by firmware and the like and in a 'neither' state.
Something certain gpio people seem to be in denial over.
Alan
next prev parent reply other threads:[~2011-04-18 8:18 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-17 21:37 Linus Walleij
2011-04-17 21:48 ` Alan Cox
2011-04-17 21:58 ` Linus Walleij
2011-04-17 22:03 ` Alan Cox
2011-04-18 0:09 ` Kyungmin Park
2011-04-18 7:17 ` Kurt Van Dijck
2011-04-18 8:04 ` Ben Nizette
2011-04-18 8:19 ` Alan Cox [this message]
2011-04-18 8:50 ` Ben Nizette
2011-04-18 11:59 ` Mark Brown
2011-04-18 22:16 ` Ben Nizette
2011-04-18 22:31 ` Mark Brown
2011-04-19 4:50 ` Ben Nizette
2011-04-20 12:11 ` Linus Walleij
2011-04-18 12:26 ` Alan Cox
2011-04-18 22:26 ` Ben Nizette
2011-04-19 8:38 ` Alan Cox
2011-04-19 8:51 ` Kyungmin Park
2011-04-20 12:32 ` Linus Walleij
2011-04-20 12:38 ` Kyungmin Park
2011-04-20 14:54 ` Alan Cox
2011-04-20 14:26 ` Haojian Zhuang
2011-04-20 14:40 ` Kyungmin Park
2011-04-20 15:04 ` Haojian Zhuang
2011-04-20 15:17 ` Linus Walleij
2011-04-20 15:32 ` Alan Cox
2011-04-20 15:45 ` Linus Walleij
2011-04-27 21:55 ` Russell King - ARM Linux
2011-04-27 22:16 ` H Hartley Sweeten
2011-04-20 15:13 ` Linus Walleij
2011-04-20 15:29 ` Alan Cox
2011-04-20 15:39 ` Linus Walleij
2011-04-20 15:43 ` Alan Cox
2011-04-27 21:58 ` Russell King - ARM Linux
2011-04-20 0:09 ` Ben Nizette
2011-04-20 9:45 ` Alan Cox
2011-04-20 12:38 ` Linus Walleij
2011-04-20 14:55 ` Alan Cox
2011-04-20 12:21 ` Linus Walleij
2011-04-20 23:32 ` Ben Nizette
2011-04-21 6:48 ` Linus Walleij
2011-04-23 8:25 ` Ben Nizette
2011-04-21 0:29 ` Ben Nizette
2011-04-20 12:19 ` Linus Walleij
2011-04-20 12:22 ` Alan Cox
2011-04-20 12:04 ` Linus Walleij
2011-04-20 23:24 ` Ben Nizette
2011-04-21 15:39 ` Stijn Devriendt
2011-04-22 11:36 ` Linus Walleij
2011-04-22 11:56 ` Alan Cox
2011-04-23 8:35 ` Ben Nizette
2011-04-25 18:52 ` Rohit Vaswani
2011-04-26 7:48 ` Linus Walleij
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