iio:magnetometer:ak8975: triggered buffer support

This will be used together with an external trigger (e.g hrtimer based
software trigger).

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Gregor Boirie 2016-04-08 17:09:08 +02:00 • committed by Jonathan Cameron
commit bc11ca4a0b
2 changed files with 112 additions and 25 deletions