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SubjectRe: [PATCH v3 4/5] Documentation: ABI: testing: ad7192: update sysfs docs
On Wed, 12 Feb 2020 18:17:20 +0200
Alexandru Tachici <alexandru.tachici@analog.com> wrote:

> Updated mainline documentation on ad7192 userspace sysfs.
>
> Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Applied.

Thanks,

Jonathan

> ---
> .../ABI/testing/sysfs-bus-iio-adc-ad7192 | 24 ++++++++++++++-----
> .../iio/Documentation/sysfs-bus-iio-ad7192 | 20 ----------------
> 2 files changed, 18 insertions(+), 26 deletions(-)
> delete mode 100644 drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192
>
> 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.

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