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-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-health-afe440x63
1 files changed, 25 insertions, 38 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x b/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x
index 3740f253d406..6adba9058b22 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x
+++ b/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x
@@ -1,54 +1,41 @@
-What: /sys/bus/iio/devices/iio:deviceX/tia_resistanceY
- /sys/bus/iio/devices/iio:deviceX/tia_capacitanceY
-Date: December 2015
-KernelVersion:
-Contact: Andrew F. Davis <afd@ti.com>
-Description:
- Get and set the resistance and the capacitance settings for the
- Transimpedance Amplifier. Y is 1 for Rf1 and Cf1, Y is 2 for
- Rf2 and Cf2 values.
-
-What: /sys/bus/iio/devices/iio:deviceX/tia_separate_en
-Date: December 2015
-KernelVersion:
-Contact: Andrew F. Davis <afd@ti.com>
-Description:
- Enable or disable separate settings for the TransImpedance
- Amplifier above, when disabled both values are set by the
- first channel.
-
-What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_raw
- /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_ambient_raw
-Date: December 2015
+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 LED number. The values are expressed in 24-bit twos
- complement.
+ 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_intensity_ledY-ledY_ambient_raw
-Date: December 2015
+What: /sys/bus/iio/devices/iio:deviceX/in_intensityY_offset
+Date: May 2016
KernelVersion:
Contact: Andrew F. Davis <afd@ti.com>
Description:
- Get differential values from the ADC for these stages. Y is the
- specific LED number. The values are expressed in 24-bit twos
- complement for the specified LEDs.
+ 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/out_current_ledY_offset
- /sys/bus/iio/devices/iio:deviceX/out_current_ledY_ambient_offset
-Date: December 2015
+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 offset cancellation DAC setting for these
- stages. The values are expressed in 5-bit sign-magnitude.
+ 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_current_ledY_raw
-Date: December 2015
+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. Y is the
- specific LED number.
+ Get and set the LED current for the specified LED active during
+ this stage. Y is the specific stage number.