On Fri, 18 Sep 2020 12:33:37 +0300 Cristian Pop <cristian.pop@xxxxxxxxxx> wrote: > If a label is defined in the device tree for this channel add that to the > channel specific attributes. This is useful for userspace to be able to > identify an individual channel. > > Signed-off-by: Cristian Pop <cristian.pop@xxxxxxxxxx> > --- > Changes in V5: > Create a separate patch file for this commit. > Documentation/ABI/testing/sysfs-bus-iio | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio > index d3e53a6d8331..f2a9a03b8af9 100644 > --- a/Documentation/ABI/testing/sysfs-bus-iio > +++ b/Documentation/ABI/testing/sysfs-bus-iio > @@ -1697,6 +1697,15 @@ Description: > > Raw counter device counters direction for channel Y. > > +What: /sys/bus/iio/devices/iio:deviceX/channel_label That naming doesn't look right. Should be something like in_voltageY_label > +KernelVersion: 5.8 > +Contact: linux-iio@xxxxxxxxxxxxxxx > +Description: > + Optional symbolic label to a device channel. > + If a label is defined in the device tree for this channel add > + that to the channel specific attributes. This is useful for > + userspace to be able to identify an individual channel. This isn't devicetree specific. The driver can elect to provide this label from all sorts of sources such as ACPI, or it might be hard coded in the driver if the channel is internal to a SoC for example. > + > What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw > KernelVersion: 4.18 > Contact: linux-iio@xxxxxxxxxxxxxxx
