gpio: modify sysfs gpio export so that "value" displays as 0 or 1
authorSteven A. Falco <sfalco@harris.com>
Sun, 19 Oct 2008 03:27:48 +0000 (20:27 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 20 Oct 2008 15:52:36 +0000 (08:52 -0700)
commite3274e915061a65717454106301d4a5ea8f71783
treee88cb4ef896fe2f4e38b58ed1b0d2f2e543c70cb
parentc8fc40cd345bfd88d8a98e7916909b9143502999
gpio: modify sysfs gpio export so that "value" displays as 0 or 1

gpiolib can export GPIOs to userspace via sysfs.  This patch modifies the
gpio_value_show() so that any non-zero value is explicitly printed as "1",
rather than whatever numerical value the lower-level driver returns.

Signed-off-by: Steve Falco <sfalco@harris.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/gpio/gpiolib.c