linux-kernel - Re: [PATCH] iio: fix pressure data output unit in hid-sensor-attributes

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Date:   Tue, 30 Aug 2016 19:49:52 +0000
From:   "Pandruvada, Srinivas" <srinivas.pandruvada@...el.com>
To:     "jikos@...nel.org" <jikos@...nel.org>,
        "Kweh, Hock Leong" <hock.leong.kweh@...el.com>,
        "jic23@...nel.org" <jic23@...nel.org>
CC:     "Lay, Kuan Loon" <kuan.loon.lay@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "lars@...afoo.de" <lars@...afoo.de>,
        "knaack.h@....de" <knaack.h@....de>,
        "Ong, Boon Leong" <boon.leong.ong@...el.com>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "pmeerw@...erw.net" <pmeerw@...erw.net>,
        "Ooi, Joyce" <joyce.ooi@...el.com>,
        "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
        "Lim, Lee Booi" <lee.booi.lim@...el.com>
Subject: Re: [PATCH] iio: fix pressure data output unit in
 hid-sensor-attributes

On Mon, 2016-08-29 at 18:50 +0800, Kweh, Hock Leong wrote:
> From: "Kweh, Hock Leong" <hock.leong.kweh@...el.com>
> 
> According to IIO ABI definition, IIO_PRESSURE data output unit is
> kilopascal:
> http://lxr.free-electrons.com/source/Documentation/ABI/testing/sysfs-
> bus-iio
> 
> This patch fix output unit of HID pressure sensor IIO driver from
> pascal to
> kilopascal to follow IIO ABI definition.
> 
> Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@...el.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>

> ---
>  .../iio/common/hid-sensors/hid-sensor-attributes.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> index e81f434..dc33c1d 100644
> --- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> +++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
> @@ -56,8 +56,8 @@ static struct {
>  	{HID_USAGE_SENSOR_ALS, 0, 1, 0},
>  	{HID_USAGE_SENSOR_ALS, HID_USAGE_SENSOR_UNITS_LUX, 1, 0},
>  
> -	{HID_USAGE_SENSOR_PRESSURE, 0, 100000, 0},
> -	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL,
> 1, 0},
> +	{HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
> +	{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL,
> 0, 1000},
>  };
>  
>  static int pow_10(unsigned power)