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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2014-04-29 00:51:00 +0100
committerJonathan Cameron <jic23@kernel.org>2014-04-29 22:05:32 +0100
commit9fbfb4b37ed23f71aa9484484266381c6c6964cb (patch)
tree441b1f942d51a1729d10a3237c7a28853f482ff9 /mm/percpu-km.c
parent3046365bb470f0ec2f7cf5cb07a8ee7e4b490103 (diff)
downloadlinux-9fbfb4b37ed23f71aa9484484266381c6c6964cb.tar.bz2
IIO: core: Introduce read_raw_multi
This callback is introduced to overcome some limitations of existing read_raw callback. The functionality of both existing read_raw and read_raw_multi is similar, both are used to request values from the device. The current read_raw callback allows only two return values. The new read_raw_multi allows returning multiple values. Instead of passing just address of val and val2, it passes length and pointer to values. Depending on the type and length of passed buffer, iio client drivers can return multiple values. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'mm/percpu-km.c')
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