[PATCH] base-files: add blink and turnoff commands to the led script

[Nicholas Smith]

ACK I like this.  Good for many applications, not the least of which
include a quick "stealth mode" LED setting or warning/notification LED
blink patterns.

All the best,
Nick

On Mon, 28 Jun 2021 at 17:18, John Crispin <john at phrozen.org> wrote:
>
> This allows us to make all leds blink or force all leds to off.
> It is also possible to force the default behaviour to not load
> any led states/triggers by setting system. at system[-1].leds_off
> to 1.
>
> Signed-off-by: John Crispin <john at phrozen.org>
> ---
>  package/base-files/files/etc/init.d/led | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/package/base-files/files/etc/init.d/led b/package/base-files/files/etc/init.d/led
> index 51cb8b5178..252bba623a 100755
> --- a/package/base-files/files/etc/init.d/led
> +++ b/package/base-files/files/etc/init.d/led
> @@ -3,6 +3,9 @@
>
>  START=96
>
> +extra_command "turnoff" "Turn all leds off"
> +extra_command "blink" "Blink all leds"
> +
>  load_led() {
>         local name
>         local sysfs
> @@ -121,7 +124,25 @@ load_led() {
>         }
>  }
>
> +turnoff() {
> +       for led in `ls /sys/class/leds/`; do
> +               echo none > /sys/class/leds/$led/trigger
> +               echo 0 > /sys/class/leds/$led/brightness
> +       done
> +}
> +
> +blink() {
> +       for led in `ls /sys/class/leds/`; do
> +               echo 0 > /sys/class/leds/$led/brightness
> +               echo timer > /sys/class/leds/$led/trigger
> +       done
> +}
> +
>  start() {
> +       [ "$(uci get system. at system[-1].leds_off)" -eq 1 ] && {
> +               turnoff
> +               exit 0
> +       }
>         [ -e /sys/class/leds/ ] && {
>                 [ -s /var/run/led.state ] && {
>                         local led trigger brightness
> @@ -137,5 +158,7 @@ start() {
>
>                 config_load system
>                 config_foreach load_led led
> +               . /etc/diag.sh
> +               set_state done
>         }
>  }
> --
> 2.25.1
>
>
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