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[v6,0/4] leds: trigger: implement a tty trigger

Message ID 20200213091600.554-1-uwe@kleine-koenig.org
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Series leds: trigger: implement a tty trigger | expand

Message

Uwe Kleine-König Feb. 13, 2020, 9:15 a.m. UTC 
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Hello,

This is v6 of my quest to introduce ledtriggers for UARTs. The previous
series is available at

	http://lore.kernel.org/r/20191219093947.15502-1-u.kleine-koenig@pengutronix.de

The changes compared to that are that parsing of the dev parameter is
more strict and that I set brightness directly from the kworker instead
of using led_blink_set_oneshot which makes use of another kworker. (Both
requested by Pavel Machek.)

For the former I introduced a new helper kstrtodev_t() in the spirit of
kstrtoul() to implement the stricter parsing (instead of the lax one
using plain sscanf() in v5).

Best regards
Uwe

Uwe Kleine-König (4):
  lib: new helper kstrtodev_t()
  tty: rename tty_kopen() and add new function tty_kopen_shared()
  tty: new helper function tty_get_icount()
  leds: trigger: implement a tty trigger

 .../ABI/testing/sysfs-class-led-trigger-tty   |   6 +
 drivers/leds/trigger/Kconfig                  |   7 +
 drivers/leds/trigger/Makefile                 |   1 +
 drivers/leds/trigger/ledtrig-tty.c            | 159 ++++++++++++++++++
 drivers/staging/speakup/spk_ttyio.c           |   2 +-
 drivers/tty/tty_io.c                          |  87 +++++++---
 include/linux/kdev_t.h                        |   2 +
 include/linux/kernel.h                        |   1 +
 include/linux/tty.h                           |   7 +-
 lib/kstrtox.c                                 |  46 +++++
 10 files changed, 293 insertions(+), 25 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-class-led-trigger-tty
 create mode 100644 drivers/leds/trigger/ledtrig-tty.c


base-commit: 0bf999f9c5e74c7ecf9dafb527146601e5c848b9