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From: Albert Herranz <email@example.com>
Date: Sun, 1 Mar 2009 19:10:07 +0100
Subject: [PATCH] gpiolib: add gpio_direction_is_output
Add a function to determine if a given gpio has been already configured
as an output.
This is handy for drivers that require changing multiple times the direction
of a gpio and want to easily avoid redundant direction changes.
Signed-off-by: Albert Herranz <firstname.lastname@example.org>