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iio: adis16400: Compute the scan mask from channel indices

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We unfortunately can't use ~0UL for the scan mask to indicate that the
only valid scan mask is all channels selected. The IIO core needs the exact
mask to work correctly and not a super-set of it. So calculate the masked
based on the channels that are available for a particular device.

Signed-off-by: Paul Cercueil <paul.cercueil@analog.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Fixes: 5eda3550a3 ("staging:iio:adis16400: Preallocate transfer message")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Paul Cercueil
2015-05-15 17:18:36 +02:00
committed by Jonathan Cameron
parent 7323d59862
commit c2a8b623a0
2 changed files with 19 additions and 7 deletions
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drivers/iio/imu/adis16400.h
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@@ -165,6 +165,7 @@ struct adis16400_state {
int filt_int;
struct adis adis;
unsigned long avail_scan_mask[2];
};
/* At the moment triggers are only used for ring buffer