linux-kernel - Re: add custom hinge sensor support

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Message-ID: <a921aecf97915bd7c618e99e8959f6bf60ea7f6d.camel@linux.intel.com>
Date:   Fri, 04 Dec 2020 03:46:08 -0800
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     Ye Xiang <xiang.ye@...el.com>, jikos@...nel.org, jic23@...nel.org
Cc:     linux-input@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: add custom hinge sensor support

On Thu, 2020-12-03 at 11:53 +0800, Ye Xiang wrote:
> Here three separate iio devices are presented which presents angle
> for
> hinge, keyboard and screen.
You are presenting one IIO device now with three channels.

> 
> This driver works on devices with Intel integrated sensor hub, where
> hinge sensor is presented using a custom sensor usage id.
> 
> Here the angle is presented in degrees, which is converted to
> radians.
> 
> Changes since v2:
>   - use 1 iio device instead of 3 for hinge sensor.
>   - use indexed channel instead of modified channel and added channel
>     labels.
>   - remove 2,3 patch in last version, add a document patch to
> describe the
>     hinge channels.
>   - hid-sensor-custom: use meaningful return value in 
>     get_known_custom_sensor_index and checked in call side.
>   - hid-sensor-ids.h: use HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE(x)
> to 
>     define custom sensor value.
> 
> Changes since v1:
>   - fixed errors reported by lkp
> 
> Ye Xiang (3):
>   HID: hid-sensor-custom: Add custom sensor iio support
>   iio: hid-sensors: Add hinge sensor driver
>   iio:Documentation: Add documentation for hinge sensor channels
> 
>  Documentation/ABI/testing/sysfs-bus-iio       |  17 +
>  drivers/hid/hid-sensor-custom.c               | 181 ++++++++
>  .../hid-sensors/hid-sensor-attributes.c       |   2 +
>  drivers/iio/position/Kconfig                  |  16 +
>  drivers/iio/position/Makefile                 |   1 +
>  .../position/hid-sensor-custom-intel-hinge.c  | 393
> ++++++++++++++++++
>  include/linux/hid-sensor-ids.h                |  14 +
>  7 files changed, 624 insertions(+)
>  create mode 100644 drivers/iio/position/hid-sensor-custom-intel-
> hinge.c
>