tree 143d247e7d9c3e505961d769494bd267c14c5078
parent 09c9feb94672bdb3ca6d424a292ffc26eff8ca0b
author Bernhard Walle <walle@corscience.de> 1290112053 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1290121246 -0800

Documentation/gpio.txt: explain poll/select usage

Add a bit more information how to use poll(2) on GPIO value files
correctly. For me it was not clear that I need to poll(2) for
POLLPRI|POLLERR or select(2) for exceptfds.

Signed-off-by: Bernhard Walle <walle@corscience.de>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>