linux-kernel - Re: [PATCH] gpio sysfs: add a "toggle" value

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Date:	Thu, 4 Jun 2009 02:06:43 -0700
From:	David Brownell <david-b@...bell.net>
To:	Mike Frysinger <vapier.adi@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpio sysfs: add a "toggle" value

On Thursday 04 June 2009, Mike Frysinger wrote:
> my next request was for a 1 letter command set and chaining
> operations.  say you want to toggle a gpio line 4 times, having to go
> between kernel and userspace for that seems kind of heavy.
> echo TTTT > value

Having that kind of stuff in kernelspace seems wrong;
if you're going that route, embed Guile or something.  ;)

The "TTTT" thing could as easily be scripted in BASH.


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