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Date:   Fri, 14 Feb 2020 15:49:18 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Alexandru Tachici <alexandru.tachici@...log.com>
Cc:     <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 4/5] Documentation: ABI: testing: ad7192: update
 sysfs docs

On Wed, 12 Feb 2020 18:17:20 +0200
Alexandru Tachici <alexandru.tachici@...log.com> wrote:

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