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authorDavid Brownell <david-b@pacbell.net>2007-04-11 23:28:42 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-12 15:31:42 -0700
commit1668be71ccae5a9610fc8a224bd80fbe852f93ae (patch)
tree4efb5472b8295a9b7572709f8d3903c5a83943da /include/asm-sh/sh03
parentfe20e581a72979917e35d5146458ceba79be391f (diff)
[PATCH] doc: gpio.txt describes open-drain emulation
Update the GPIO docs to describe the idiom whereby open drain signals are emulated by toggling the GPIO direction. 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>
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