[PATCH 3.13.y-ckt 38/96] iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
Kamal Mostafa
kamal at canonical.com
Mon Dec 15 19:25:58 UTC 2014
3.13.11-ckt13 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Cristina Ciocan <cristina.ciocan at intel.com>
commit ccf54555da9a5e91e454b909ca6a5303c7d6b910 upstream.
The direction field is set on 7 bits, thus we need to AND it with 0111 111 mask
in order to retrieve it, that is 0x7F, not 0xCF as it is now.
Fixes: ade7ef7ba (staging:iio: Differential channel handling)
Signed-off-by: Cristina Ciocan <cristina.ciocan at intel.com>
Signed-off-by: Jonathan Cameron <jic23 at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
include/linux/iio/events.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 5dab2c4..c3ee817 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -76,7 +76,7 @@ struct iio_event_data {
#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
--
1.9.1
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