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| author | Marc Titinger <mtitinger@baylibre.com> | 2015-12-14 12:01:10 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-12-19 15:08:00 +0000 |
| commit | 6e17c98a004c921e07bdecdb8cc2320488f88759 (patch) | |
| tree | 5febfbf5dbf79fe3db51114036f588fbc14c184a /Documentation/ABI | |
| parent | 75e1a3a789e1f7437e4d369a5ba45ebd5dd24490 (diff) | |
| download | linux-6e17c98a004c921e07bdecdb8cc2320488f88759.tar.bz2 | |
iio: ina2xx: add ABI documentation entry sysfs-bus-iio-ina2xx-adc
Documentation for attributes:
* in_allow_async_readout
* in_shunt_resistor
Signed-off-by: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc b/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc new file mode 100644 index 000000000000..8916f7ec6507 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-ina2xx-adc @@ -0,0 +1,24 @@ +What: /sys/bus/iio/devices/iio:deviceX/in_allow_async_readout +Date: December 2015 +KernelVersion: 4.4 +Contact: linux-iio@vger.kernel.org +Description: + By default (value '0'), the capture thread checks for the Conversion + Ready Flag to being set prior to committing a new value to the sample + buffer. This synchronizes the in-chip conversion rate with the + in-driver readout rate at the cost of an additional register read. + + Writing '1' will remove the polling for the Conversion Ready Flags to + save the additional i2c transaction, which will improve the bandwidth + available for reading data. However, samples can be occasionally skipped + or repeated, depending on the beat between the capture and conversion + rates. + +What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistor +Date: December 2015 +KernelVersion: 4.4 +Contact: linux-iio@vger.kernel.org +Description: + The value of the shunt resistor may be known only at runtime fom an + eeprom content read by a client application. This attribute allows to + set its value in ohms. |