xref: /linux/Documentation/ABI/testing/sysfs-bus-iio-adc-hi8435 (revision 4b132aacb0768ac1e652cf517097ea6f237214b9)
1What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_sensing_mode
2Date:		August 2015
3KernelVersion:	4.2.0
4Contact:	source@cogentembedded.com
5Description:
6		Program sensor type for threshold detector inputs.
7		Could be either "GND-Open" or "Supply-Open" mode. Y is a
8		threshold detector input channel. Channels 0..7, 8..15, 16..23
9		and 24..31 has common sensor types.
10
11What:		/sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_falling_value
12Date:		August 2015
13KernelVersion:	4.2.0
14Contact:	source@cogentembedded.com
15Description:
16		Channel Y low voltage threshold. If sensor input voltage goes lower then
17		this value then the threshold falling event is pushed.
18		Depending on in_voltageY_sensing_mode the low voltage threshold
19		is separately set for "GND-Open" and "Supply-Open" modes.
20		Channels 0..31 have common low threshold values, but could have different
21		sensing_modes.
22
23		The low voltage threshold range is between 2..21V.
24		Hysteresis between low and high thresholds can not be lower then 2 and
25		can not be odd.
26
27		If falling threshold results hysteresis to odd value then rising
28		threshold is automatically subtracted by one.
29
30What:		/sys/bus/iio/devices/iio:deviceX/events/in_voltageY_thresh_rising_value
31Date:		August 2015
32KernelVersion:	4.2.0
33Contact:	source@cogentembedded.com
34Description:
35		Channel Y high voltage threshold. If sensor input voltage goes higher then
36		this value then the threshold rising event is pushed.
37		Depending on in_voltageY_sensing_mode the high voltage threshold
38		is separately set for "GND-Open" and "Supply-Open" modes.
39
40		Channels 0..31 have common high threshold values, but could have different
41		sensing_modes.
42
43		The high voltage threshold range is between 3..22V.
44		Hysteresis between low and high thresholds can not be lower then 2 and
45		can not be odd.
46
47		If rising threshold results hysteresis to odd value then falling
48		threshold is automatically appended by one.
49