linux-kernel - Re: [PATCH v5 1/2] staging: iio: Documentation sysfs-bus-iio add power

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Message-ID: <521E1255.2090201@linux.intel.com>
Date:	Wed, 28 Aug 2013 08:08:05 -0700
From:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:	Oleksandr Kravchenko <o.v.kravchenko@...ballogic.com>
CC:	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
	rob.herring@...xeda.com, pawel.moll@....com, mark.rutland@....com,
	swarren@...dotorg.org, ian.campbell@...rix.com, rob@...dley.net,
	jic23@....ac.uk, denis.ciocca@...com, lars@...afoo.de
Subject: Re: [PATCH v5 1/2] staging: iio: Documentation sysfs-bus-iio add
 power_mode

On 08/28/2013 04:01 AM, Oleksandr Kravchenko wrote:
> Add description about in_accelX_power_mode and
> in_accel_power_mode_available.
>
> Signed-off-by: Oleksandr Kravchenko <o.v.kravchenko@...ballogic.com>
> ---
>   Documentation/ABI/testing/sysfs-bus-iio |   10 ++++++++++
>   1 file changed, 10 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> index dda81ff..1a333f3 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio
> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> @@ -792,3 +792,13 @@ Contact:	linux-iio@...r.kernel.org
>   Description:
>   		This attribute is used to read the amount of quadrature error
>   		present in the device at a given time.
> +
> +What:		/sys/.../iio:deviceX/in_accelX_power_mode
Shall we add power_mode to all sensors not just accelerometer? HID 
sensor hub spec allows every sensor in it to go low power mode.
This is not same as OFF.
> +KernelVersion:	3.11
> +Contact:	linux-iio@...r.kernel.org
> +Description:
> +		Specifies the chip power mode.
> +		low_noise: reduce noise level from ADC,
> +		low_power: enable low current consumption.
> +		For a list of available output power modes read
> +		in_accel_power_mode_available.

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