leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

iio:Documentation:ABI Add missing elements as used by the adi,ad7150

Browse Source 
Main additions are around thresh_adaptive.  This has been supported
by the core of IIO for a long time, but no driver that uses it has
previously graduated from staging, hence we are missing Docs.

Otherwise, just new entries in existing lists.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20210314181511.531414-22-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2021-03-14 18:15:08 +00:00
parent 89f2d5b080
commit 9b2571b02d
1 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
Documentation/ABI/testing/sysfs-bus-iio
View File

@ -371,6 +371,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
@ -702,6 +703,8 @@ What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@ -779,6 +782,32 @@ Description:
a given event type is enabled a future point (and not those for
whatever event was previously enabled).
What: /sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
What: /sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
KernelVersion: 5.13
Contact: linux-iio@vger.kernel.org
Descrption:
Adaptive thresholds are similar to normal fixed thresholds
but the value is expressed as an offset from a value which
provides a low frequency approximation of the channel itself.
Thus these detect if a rapid change occurs in the specified
direction which crosses tracking value + offset.
Tracking value calculation is devices specific.
What: /sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
What: /sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
KernelVersion: 5.11
Contact: linux-iio@vger.kernel.org
Descrption:
When adaptive thresholds are used, the tracking signal
may adjust too slowly to step changes in the raw signal.
*_timeout (in seconds) specifies a time for which the
difference between the slow tracking signal and the raw
signal is allowed to remain out-of-range before a reset
event occurs in which the tracking signal is made equal
to the raw signal, allowing slow tracking to resume and the
adaptive threshold event detection to function as expected.
What: /sys/.../events/in_accel_thresh_rising_value
What: /sys/.../events/in_accel_thresh_falling_value
What: /sys/.../events/in_accel_x_raw_thresh_rising_value
@ -819,6 +848,10 @@ What: /sys/.../events/in_proximity0_thresh_falling_value
What: /sys/.../events/in_proximity0_thresh_rising_value
What: /sys/.../events/in_illuminance_thresh_rising_value
What: /sys/.../events/in_illuminance_thresh_falling_value
What: /sys/.../events/in_capacitanceY_thresh_rising_value
What: /sys/.../events/in_capacitanceY_thresh_falling_value
What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description: