Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

iio: distance: srf08: add driver ABI documentation

Browse source 
Add sysfs-bus-iio-distance-srf08 for individual attributes of the driver,
especially:
 - sensitivity which the device documentation calls gain for amplifying the
   signal
 - max_range for limiting the maximum distance for expected echos and
   therefore limiting the time waiting for telegrams

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Andreas Klinger 2017-01-25 20:07:47 +01:00 committed by Jonathan Cameron
parent 78f839029e
commit 1dc2af8787
1 changed files with 22 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
Documentation/ABI/testing/sysfs-bus-iio-distance-srf08 Normal file
View file

@ -0,0 +1,22 @@
What /sys/bus/iio/devices/iio:deviceX/sensor_sensitivity
Date: January 2017
KernelVersion: 4.11
Contact: linux-iio@vger.kernel.org
Description:
Show or set the gain boost of the amp, from 0-31 range.
default 31
What /sys/bus/iio/devices/iio:deviceX/sensor_max_range
Date: January 2017
KernelVersion: 4.11
Contact: linux-iio@vger.kernel.org
Description:
Show or set the maximum range between the sensor and the
first object echoed in meters. Default value is 6.020.
This setting limits the time the driver is waiting for a
echo.
Showing the range of available values is represented as the
minimum value, the step and the maximum value, all enclosed
in square brackets.
Example:
[0.043 0.043 11.008]