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authorJonathan Cameron <jic23@kernel.org>2013-09-08 14:57:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-09-15 17:45:49 +0100
commitc006ec838414d910bdd63ba8d919e602425e194e (patch)
treec288247b0237759d7ef4d11caf675a180413de96 /include/linux/iio
parent3704432fb1fd8ab2df114bad6df752381246b609 (diff)
downloadop-kernel-dev-c006ec838414d910bdd63ba8d919e602425e194e.zip
op-kernel-dev-c006ec838414d910bdd63ba8d919e602425e194e.tar.gz
iio: add info_mask_[shared_by_dir/shared_by_all]
These two additional info_mask bitmaps should allow all 'standard' numeric attributes to be handled using the read_raw and write_raw callbacks. Whilst this should reduce code, the more important element is that this makes these values easily accessible to in kernel users of IIO devices. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Diffstat (limited to 'include/linux/iio')
-rw-r--r--include/linux/iio/iio.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 21de272..ac1cb8f 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -41,7 +41,9 @@ enum iio_chan_info_enum {
enum iio_shared_by {
IIO_SEPARATE,
- IIO_SHARED_BY_TYPE
+ IIO_SHARED_BY_TYPE,
+ IIO_SHARED_BY_DIR,
+ IIO_SHARED_BY_ALL
};
enum iio_endian {
@@ -156,6 +158,10 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
* this channel.
* @info_mask_shared_by_type: What information is to be exported that is shared
* by all channels of the same type.
+ * @info_mask_shared_by_dir: What information is to be exported that is shared
+ * by all channels of the same direction.
+ * @info_mask_shared_by_all: What information is to be exported that is shared
+ * by all channels.
* @event_mask: What events can this channel produce.
* @ext_info: Array of extended info attributes for this channel.
* The array is NULL terminated, the last element should
@@ -192,6 +198,8 @@ struct iio_chan_spec {
} scan_type;
long info_mask_separate;
long info_mask_shared_by_type;
+ long info_mask_shared_by_dir;
+ long info_mask_shared_by_all;
long event_mask;
const struct iio_chan_spec_ext_info *ext_info;
const char *extend_name;
@@ -215,7 +223,9 @@ static inline bool iio_channel_has_info(const struct iio_chan_spec *chan,
enum iio_chan_info_enum type)
{
return (chan->info_mask_separate & BIT(type)) |
- (chan->info_mask_shared_by_type & BIT(type));
+ (chan->info_mask_shared_by_type & BIT(type)) |
+ (chan->info_mask_shared_by_dir & BIT(type)) |
+ (chan->info_mask_shared_by_all & BIT(type));
}
#define IIO_ST(si, rb, sb, sh) \
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