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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-26 17:55:10 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-07-18 18:38:34 +0100 |
| commit | 41a7d6718b45f216da8bc4e13f812b382f6d21da (patch) | |
| tree | ffdc8a4a38b21f564707216a759ff52dcc18071e /Documentation/ABI/testing | |
| parent | c089f6fc4a55527047ae40cb72e841822a47425a (diff) | |
| download | lwn-41a7d6718b45f216da8bc4e13f812b382f6d21da.tar.gz lwn-41a7d6718b45f216da8bc4e13f812b382f6d21da.zip | |
iio: ABI: stm32-timer-trigger: Fuse unusual ABI into main doc.
We can't duplicate the description of sampling_frequency. This device
has some unusual requirements which we solved by giving a
sampling_frequency of 0 special meaning. As such add a note
about this unusual usage to the main documentation.
Whilst I don't particularly like this resolution, it is the best
I could come up with given earlier discussion on this topic.
Link: https://lore.kernel.org/linux-iio/20210315101217.00002c50@Huawei.com/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/20220626165511.602202-4-jic23@kernel.org
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio | 3 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 | 8 |
2 files changed, 3 insertions, 8 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 3e00d7f7ee22..e81ba6f5e1c8 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -107,6 +107,9 @@ Description: relevant directories. If it affects all of the above then it is to be found in the base device directory. + The stm32-timer-trigger has the additional characteristic that + a sampling_frequency of 0 is defined to stop sampling. + What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 index c4a4497c249a..05074c4a65e2 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 +++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 @@ -90,14 +90,6 @@ Description: Reading returns the current master modes. Writing set the master mode -What: /sys/bus/iio/devices/triggerX/sampling_frequency -KernelVersion: 4.11 -Contact: benjamin.gaignard@st.com -Description: - Reading returns the current sampling frequency. - Writing an value different of 0 set and start sampling. - Writing 0 stop sampling. - What: /sys/bus/iio/devices/iio:deviceX/in_count0_preset KernelVersion: 4.12 Contact: benjamin.gaignard@st.com |