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| author | Alexandru Tachici <alexandru.tachici@analog.com> | 2020-02-12 18:17:20 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-03-08 17:28:33 +0000 |
| commit | 7e4d75935ddb61b1d2de5dea2dbd951cd1a90263 (patch) | |
| tree | bdb707fee3c6cb1e4cf702efc4e6dcfe3f1acb6d | |
| parent | 66614ab2be38ac292c6f314110bde0be79751b2b (diff) | |
| download | kernel_replicant_linux-7e4d75935ddb61b1d2de5dea2dbd951cd1a90263.tar.gz kernel_replicant_linux-7e4d75935ddb61b1d2de5dea2dbd951cd1a90263.tar.bz2 kernel_replicant_linux-7e4d75935ddb61b1d2de5dea2dbd951cd1a90263.zip | |
Documentation: ABI: testing: ad7192: update sysfs docs
Updated mainline documentation on ad7192 userspace sysfs.
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 | 24 | ||||
| -rw-r--r-- | drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192 | 20 |
2 files changed, 18 insertions, 26 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 index 7627d3be08f5..f8315202c8f0 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 @@ -2,17 +2,22 @@ What: /sys/bus/iio/devices/iio:deviceX/ac_excitation_en KernelVersion: Contact: linux-iio@vger.kernel.org Description: - Reading gives the state of AC excitation. - Writing '1' enables AC excitation. + This attribute, if available, is used to enable the AC + excitation mode found on some converters. In ac excitation mode, + the polarity of the excitation voltage is reversed on + alternate cycles, to eliminate DC errors. What: /sys/bus/iio/devices/iio:deviceX/bridge_switch_en KernelVersion: Contact: linux-iio@vger.kernel.org Description: - This bridge switch is used to disconnect it when there is a - need to minimize the system current consumption. - Reading gives the state of the bridge switch. - Writing '1' enables the bridge switch. + This attribute, if available, is used to close or open the + bridge power down switch found on some converters. + In bridge applications, such as strain gauges and load cells, + the bridge itself consumes the majority of the current in the + system. To minimize the current consumption of the system, + the bridge can be disconnected (when it is not being used + using the bridge_switch_en attribute. What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration KernelVersion: @@ -21,6 +26,13 @@ Description: Initiates the system calibration procedure. This is done on a single channel at a time. Write '1' to start the calibration. +What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw +KernelVersion: +Contact: linux-iio@vger.kernel.org +Description: + Measure voltage from AIN2 pin connected to AIN(+) + and AIN(-) shorted. + What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available KernelVersion: Contact: linux-iio@vger.kernel.org diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192 b/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192 deleted file mode 100644 index 1c35c507cc05..000000000000 --- a/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192 +++ /dev/null @@ -1,20 +0,0 @@ -What: /sys/.../iio:deviceX/ac_excitation_en -KernelVersion: 3.1.0 -Contact: linux-iio@vger.kernel.org -Description: - This attribute, if available, is used to enable the AC - excitation mode found on some converters. In ac excitation mode, - the polarity of the excitation voltage is reversed on - alternate cycles, to eliminate DC errors. - -What: /sys/.../iio:deviceX/bridge_switch_en -KernelVersion: 3.1.0 -Contact: linux-iio@vger.kernel.org -Description: - This attribute, if available, is used to close or open the - bridge power down switch found on some converters. - In bridge applications, such as strain gauges and load cells, - the bridge itself consumes the majority of the current in the - system. To minimize the current consumption of the system, - the bridge can be disconnected (when it is not being used - using the bridge_switch_en attribute. |