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Groups > linux.kernel > #1370867
| From | Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/5] Extend the LED panic trigger |
| Date | 2016-04-04 22:30 +0200 |
| Message-ID | <rkjih-dT-7@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
As per commit 916fe61995 ("leds: trigger: Introduce a kernel panic LED
trigger"), the kernel now supports a new LED trigger to hook on
the panic blink.
However, the only way of using this is to dedicate a LED device
to this function.
To overcome this limitation, the present series introduces the
capability to switch the LED trigger of certain LED devices upon
a kernel panic (using the panic notifier).
The decision of which LEDs should be switched to the panic trigger
is left to each LED device driver. As an example, a devicetree
boolean property is introduced and used in the leds-gpio driver.
Feedback and other ideas on how to implement this are most welcomed.
Ezequiel Garcia (5):
leds: triggers: Allow to switch the trigger to "panic" on a kernel
panic
leds: triggers: Add a led_trigger_event_nosleep API
leds: trigger: panic: Use led_trigger_event_nosleep
devicetree: leds: Introduce "panic-blink" optional property
leds: gpio: Support the panic-blink firmware property
Documentation/devicetree/bindings/leds/common.txt | 2 +
drivers/leds/led-triggers.c | 78 +++++++++++++++++++++--
drivers/leds/leds-gpio.c | 4 ++
drivers/leds/trigger/ledtrig-panic.c | 2 +-
include/linux/leds.h | 6 ++
5 files changed, 87 insertions(+), 5 deletions(-)
--
2.7.0
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[PATCH 0/5] Extend the LED panic trigger Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> - 2016-04-04 22:30 +0200
[PATCH 5/5] leds: gpio: Support the panic-blink firmware property Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> - 2016-04-04 22:30 +0200
[PATCH 2/5] leds: triggers: Add a led_trigger_event_nosleep API Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> - 2016-04-04 22:30 +0200
Re: [PATCH 2/5] leds: triggers: Add a led_trigger_event_nosleep API Jacek Anaszewski <jacek.anaszewski@gmail.com> - 2016-04-05 23:40 +0200
Re: [PATCH 2/5] leds: triggers: Add a led_trigger_event_nosleep API Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> - 2016-04-06 06:40 +0200
Re: [PATCH 2/5] leds: triggers: Add a led_trigger_event_nosleep API Jacek Anaszewski <jacek.anaszewski@gmail.com> - 2016-04-06 08:20 +0200
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