linux-kernel - [PATCH v4 0/3] leds: Introduce userspace leds driver

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Date:   Fri, 16 Sep 2016 14:16:47 -0500
From:   David Lechner <david@...hnology.com>
To:     Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:     David Lechner <david@...hnology.com>, linux-kernel@...r.kernel.org,
        linux-leds@...r.kernel.org, Marcel Holtmann <marcel@...tmann.org>,
        Pavel Machek <pavel@....cz>
Subject: [PATCH v4 0/3]  leds: Introduce userspace leds driver

v2 changes:

* sort #includes
* fix typo in Kconfig
* Add Documentation text file

v3 changes:

* fix typos in docs
* rename "leds class"  to "LED class" in docs
* rebase on linux-leds/for-next

v4 changes:

* Use devm_led_classdev_register() instead of led_classdev_register()
* Clarified how to create multiple devices in documentation
* uledmon.c now uses blocking reads instead of poll()
* Add some sanity checking on user-provided device name to make sure it is not
  a directory name
* Reading from /dev/uleds allows any size read buffer - still only returns one
  byte regardless of size
* Reading from /dev/uleds blocks until the brightness is changed
* LEDS_MAX_NAME_SIZE is reduced to 64 to match existing name size limit
* New patch to use LEDS_MAX_NAME_SIZE in drivers/leds/led-class.c
* Moved example code to tool/leds/uledmon.c (new patch with Makefile)

David Lechner (3):
  leds: Introduce userspace leds driver
  leds: Use macro for max device node name size
  tools/leds: Add uledmon program for monitoring userspace LEDs

 Documentation/leds/uleds.txt |  36 +++++++
 drivers/leds/Kconfig         |   8 ++
 drivers/leds/Makefile        |   3 +
 drivers/leds/led-class.c     |   3 +-
 drivers/leds/uleds.c         | 230 +++++++++++++++++++++++++++++++++++++++++++
 include/uapi/linux/Kbuild    |   1 +
 include/uapi/linux/uleds.h   |  23 +++++
 tools/Makefile               |   7 +-
 tools/leds/.gitignore        |   1 +
 tools/leds/Makefile          |  13 +++
 tools/leds/uledmon.c         |  62 ++++++++++++
 11 files changed, 383 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/leds/uleds.txt
 create mode 100644 drivers/leds/uleds.c
 create mode 100644 include/uapi/linux/uleds.h
 create mode 100644 tools/leds/.gitignore
 create mode 100644 tools/leds/Makefile
 create mode 100644 tools/leds/uledmon.c

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