From: Jonathan Cameron Date: Tue, 18 Aug 2009 17:06:26 +0000 (+0100) Subject: Staging: IIO: Trigger support added to core. X-Git-Tag: v2.6.32-rc1~668^2~92 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1637db44413e32a0f100dd4bd164644e641842f7;p=pandora-kernel.git Staging: IIO: Trigger support added to core. Add general registration support for IIO triggers. These are currently only used to initialize a 'poll' of a given device. Examples include the lis3l02dq's data ready signal being used to initialize a read and gpio triggers being used to allow externally synchronized sensor reading. Each trigger can cause any number of 'consumer' devices to be polled with each storing data into a related ring buffer. Two stage triggering is supported with 'fast' and 'slow' paths. The first is used for things like pulling a data hold line high and the second for actual read which may take far longer. Changes since V2: * As with IIO triggers now use a registration approach much closer to that of input leading to cleaner code. Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed