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authorLars-Peter Clausen <lars@metafoo.de>2012-02-13 10:25:33 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-13 20:10:32 -0800
commitf30f929fcd6c8d2cae8ec4396534337886e414c0 (patch)
treedf735b3731ba87d8e6f945981cad7d6af730480d
parentda36716042d90a214dc80ea85c71b80c23889832 (diff)
staging:iio: Add missing event code extract macros
Add macros for extracting whether the event is for a differential channel and the second channel number from the event code. These were the only two fields which did not have such an macro yet. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/staging/iio/events.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/iio/events.h b/drivers/staging/iio/events.h
index 416800e2365..c25f0e3c92e 100644
--- a/drivers/staging/iio/events.h
+++ b/drivers/staging/iio/events.h
@@ -97,7 +97,9 @@ enum iio_event_direction {
/* Event code number extraction depends on which type of event we have.
* Perhaps review this function in the future*/
#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
+#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
+#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
#endif