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iio: core: introduce IIO_CHAN_INFO_HARDWAREGAIN 

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Michael Hennerich 2012-05-11 11:36:53 +02:00 committed by Greg Kroah-Hartman
parent 67eedba39e
commit b65d62122f
3 changed files with 13 additions and 0 deletions
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7
Documentation/ABI/testing/sysfs-bus-iio
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@ -280,6 +280,13 @@ Description:
If a discrete set of scale values are available, they
are listed in this attribute.
What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
Hardware applied gain factor. If shared across all channels,
<type>_hardwaregain is used.
What: /sys/.../in_accel_filter_low_pass_3db_frequency
What: /sys/.../in_magn_filter_low_pass_3db_frequency
What: /sys/.../in_anglvel_filter_low_pass_3db_frequency

1
drivers/iio/industrialio-core.c
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@ -91,6 +91,7 @@ static const char * const iio_chan_info_postfix[] = {
[IIO_CHAN_INFO_SAMP_FREQ] = "sampling_frequency",
[IIO_CHAN_INFO_FREQUENCY] = "frequency",
[IIO_CHAN_INFO_PHASE] = "phase",
[IIO_CHAN_INFO_HARDWAREGAIN] = "hardwaregain",
};
const struct iio_chan_spec

5
include/linux/iio/iio.h
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@ -34,6 +34,7 @@ enum iio_chan_info_enum {
IIO_CHAN_INFO_SAMP_FREQ,
IIO_CHAN_INFO_FREQUENCY,
IIO_CHAN_INFO_PHASE,
IIO_CHAN_INFO_HARDWAREGAIN,
};
#define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
@ -95,6 +96,10 @@ enum iio_chan_info_enum {
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PHASE)
#define IIO_CHAN_INFO_PHASE_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PHASE)
#define IIO_CHAN_INFO_HARDWAREGAIN_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
#define IIO_CHAN_INFO_HARDWAREGAIN_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
enum iio_endian {
IIO_CPU,