xref: /linux/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_raw
2Date:		May 2016
3KernelVersion:
4Contact:	Andrew F. Davis <afd@ti.com>
5Description:
6		Get measured values from the ADC for these stages. Y is the
7		specific stage number corresponding to datasheet stage names
8		as follows:
9		1 -> LED2
10		2 -> ALED2/LED3
11		3 -> LED1
12		4 -> ALED1/LED4
13		Note that channels 5 and 6 represent LED2-ALED2 and LED1-ALED1
14		respectively which simply helper channels containing the
15		calculated difference in the value of stage 1 - 2 and 3 - 4.
16		The values are expressed in 24-bit twos complement.
17
18What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_offset
19Date:		May 2016
20KernelVersion:
21Contact:	Andrew F. Davis <afd@ti.com>
22Description:
23		Get and set the offset cancellation DAC setting for these
24		stages. The values are expressed in 5-bit sign-magnitude.
25
26What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_resistance
27What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_capacitance
28Date:		May 2016
29KernelVersion:
30Contact:	Andrew F. Davis <afd@ti.com>
31Description:
32		Get and set the resistance and the capacitance settings for the
33		Transimpedance Amplifier during the associated stage.
34
35What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
36Date:		May 2016
37KernelVersion:
38Contact:	Andrew F. Davis <afd@ti.com>
39Description:
40		Get and set the LED current for the specified LED active during
41		this stage. Y is the specific stage number.
42