mirror of
https://github.com/torvalds/linux.git
synced 2024-12-22 19:01:37 +00:00
72aa29ce0a
Add Holt threshold detector driver for HI-8435 chip Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
44 lines
1.9 KiB
Plaintext
44 lines
1.9 KiB
Plaintext
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sensing_mode
|
|
Date: August 2015
|
|
KernelVersion: 4.2.0
|
|
Contact: source@cogentembedded.com
|
|
Description:
|
|
Program sensor type for threshold detector inputs.
|
|
Could be either "GND-Open" or "Supply-Open" mode. Y is a
|
|
threshold detector input channel. Channels 0..7, 8..15, 16..23
|
|
and 24..31 has common sensor types.
|
|
|
|
What: /sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_falling_value
|
|
Date: August 2015
|
|
KernelVersion: 4.2.0
|
|
Contact: source@cogentembedded.com
|
|
Description:
|
|
Channel Y low voltage threshold. If sensor input voltage goes lower then
|
|
this value then the threshold falling event is pushed.
|
|
Depending on in_voltageY_sensing_mode the low voltage threshold
|
|
is separately set for "GND-Open" and "Supply-Open" modes.
|
|
Channels 0..31 have common low threshold values, but could have different
|
|
sensing_modes.
|
|
The low voltage threshold range is between 2..21V.
|
|
Hysteresis between low and high thresholds can not be lower then 2 and
|
|
can not be odd.
|
|
If falling threshold results hysteresis to odd value then rising
|
|
threshold is automatically subtracted by one.
|
|
|
|
What: /sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_rising_value
|
|
Date: August 2015
|
|
KernelVersion: 4.2.0
|
|
Contact: source@cogentembedded.com
|
|
Description:
|
|
Channel Y high voltage threshold. If sensor input voltage goes higher then
|
|
this value then the threshold rising event is pushed.
|
|
Depending on in_voltageY_sensing_mode the high voltage threshold
|
|
is separately set for "GND-Open" and "Supply-Open" modes.
|
|
Channels 0..31 have common high threshold values, but could have different
|
|
sensing_modes.
|
|
The high voltage threshold range is between 3..22V.
|
|
Hysteresis between low and high thresholds can not be lower then 2 and
|
|
can not be odd.
|
|
If rising threshold results hysteresis to odd value then falling
|
|
threshold is automatically appended by one.
|