[PATCH v4 0/9] Output raw touch data via V4L2

From	Nick Dyer <nick.dyer@itdev.co.uk>
Newsgroups	linux.kernel
Subject	[PATCH v4 0/9] Output raw touch data via V4L2
Date	2016-06-17 16:20 +0200
Message-ID	<rL2MS-7BC-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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This is a series of patches to add output of raw touch diagnostic data via V4L2
to the Atmel maXTouch and Synaptics RMI4 drivers.

It's a rewrite of the previous implementation which output via debugfs: it now
uses a V4L2 device in a similar way to the sur40 driver.

We have a utility which can read the data and display it in a useful format:
    https://github.com/ndyer/heatmap/commits/heatmap-v4l

These patches are also available from
    https://github.com/ndyer/linux/commits/v4l-touch-2016-06-17

Changes in v4:
- Address nits from the input side in atmel_mxt_ts patches (Dmitry Torokhov)
- Add Synaptics RMI4 F54 support patch

Changes in v3:
- Address V4L2 review comments from Hans Verkuil
- Run v4l-compliance and fix all issues - needs minor patch here:
  https://github.com/ndyer/v4l-utils/commit/cf50469773f

Changes in v2:
- Split pixfmt changes into separate commit and add DocBook
- Introduce VFL_TYPE_TOUCH_SENSOR and /dev/v4l-touch
- Remove "single node" support for now, it may be better to treat it as metadata later
- Explicitly set VFL_DIR_RX
- Fix Kconfig

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[PATCH v4 0/9] Output raw touch data via V4L2 Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-17 16:20 +0200
  [PATCH v4 1/9] [media] Add signed 16-bit pixel format Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-17 16:20 +0200
    Re: [PATCH v4 1/9] [media] Add signed 16-bit pixel format Hans Verkuil <hverkuil@xs4all.nl> - 2016-06-20 13:10 +0200
      Re: [PATCH v4 1/9] [media] Add signed 16-bit pixel format Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-20 14:00 +0200
  [PATCH v4 4/9] Input: atmel_mxt_ts - output diagnostic debug via v4l2 device Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-17 16:20 +0200
  [PATCH v4 5/9] Input: atmel_mxt_ts - read touchscreen size Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-17 16:20 +0200
  [PATCH v4 9/9] Input: synaptics-rmi4 - add support for F54 diagnostics Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-17 16:20 +0200
    Re: [PATCH v4 9/9] Input: synaptics-rmi4 - add support for F54  diagnostics Hans Verkuil <hverkuil@xs4all.nl> - 2016-06-20 18:30 +0200
      Re: [PATCH v4 9/9] Input: synaptics-rmi4 - add support for F54  diagnostics Nick Dyer <nick.dyer@itdev.co.uk> - 2016-06-22 00:20 +0200

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