xref: /linux/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x (revision a460513ed4b6994bfeb7bd86f72853140bc1ac12)
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
10		== ==========
11		1  LED2
12		2  ALED2/LED3
13		3  LED1
14		4  ALED1/LED4
15		== ==========
16
17		Note that channels 5 and 6 represent LED2-ALED2 and LED1-ALED1
18		respectively which simply helper channels containing the
19		calculated difference in the value of stage 1 - 2 and 3 - 4.
20		The values are expressed in 24-bit twos complement.
21
22What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_offset
23Date:		May 2016
24KernelVersion:
25Contact:	Andrew F. Davis <afd@ti.com>
26Description:
27		Get and set the offset cancellation DAC setting for these
28		stages. The values are expressed in 5-bit sign-magnitude.
29
30What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_resistance
31What:		/sys/bus/iio/devices/iio:deviceX/in_intensityY_capacitance
32Date:		May 2016
33KernelVersion:
34Contact:	Andrew F. Davis <afd@ti.com>
35Description:
36		Get and set the resistance and the capacitance settings for the
37		Transimpedance Amplifier during the associated stage.
38
39What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
40Date:		May 2016
41KernelVersion:
42Contact:	Andrew F. Davis <afd@ti.com>
43Description:
44		Get and set the LED current for the specified LED active during
45		this stage. Y is the specific stage number.
46