summaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x
blob: 6adba9058b22b649d772381ae24634c1d8a0f940 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_raw
Date:		May 2016
KernelVersion:
Contact:	Andrew F. Davis <afd@ti.com>
Description:
		Get measured values from the ADC for these stages. Y is the
		specific stage number corresponding to datasheet stage names
		as follows:
		1 -> LED2
		2 -> ALED2/LED3
		3 -> LED1
		4 -> ALED1/LED4
		Note that channels 5 and 6 represent LED2-ALED2 and LED1-ALED1
		respectively which simply helper channels containing the
		calculated difference in the value of stage 1 - 2 and 3 - 4.
		The values are expressed in 24-bit twos complement.

What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_offset
Date:		May 2016
KernelVersion:
Contact:	Andrew F. Davis <afd@ti.com>
Description:
		Get and set the offset cancellation DAC setting for these
		stages. The values are expressed in 5-bit sign-magnitude.

What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_resistance
What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_capacitance
Date:		May 2016
KernelVersion:
Contact:	Andrew F. Davis <afd@ti.com>
Description:
		Get and set the resistance and the capacitance settings for the
		Transimpedance Amplifier during the associated stage.

What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
Date:		May 2016
KernelVersion:
Contact:	Andrew F. Davis <afd@ti.com>
Description:
		Get and set the LED current for the specified LED active during
		this stage. Y is the specific stage number.