Hopspitfire: New page: I wish the device would indicate via flashing LED that I had a message or alert waiting. I didn't find a way to do it via the regular interface, but from the command line I can at least c...

2009-07-20T22:22:15Z

New page: I wish the device would indicate via flashing LED that I had a message or alert waiting. I didn't find a way to do it via the regular interface, but from the command line I can at least c...

New page

I wish the device would indicate via flashing LED that I had a message or alert waiting. I didn't find a way to do it via the regular interface, but from the command line I can at least control the led via the sysfs mounted on /sys

The list of LEDs are:

<pre><nowiki>
root@castle:/sys/class/leds# ls -F
core_navi_center/ core_navi_left/ core_navi_right/ kbd_bl_led_center/ kbd_bl_led_left/ kbd_bl_led_right/
</nowiki></pre>

the core_navi_left is the left-bottom white led in the "gesture" area.

<pre><nowiki>
root@castle:/sys/class/leds/core_navi_left# ls -F
brightness device@ power/ subsystem@ uevent
</nowiki></pre>

with the device sleeping and no panel leds on:
<pre><nowiki>
root@castle:/sys/class/leds/core_navi_left# cat brightness
0
</nowiki></pre>

to make one of the LEDs light up
<pre><nowiki>
root@castle:/sys/class/leds/core_navi_left# echo 50 > brightness
</nowiki></pre>

that set the intensity at about 50%. The only numeric values that made any visible change were in the range of 0-100. Setting it back to zero turned off the LED:

<pre><nowiki>
root@castle:/sys/class/leds/core_navi_left# echo 0 > brightness
</nowiki></pre>

So if I want it bad enough, and nobody finds an easier way to do it in the app framework, I could probably write a shell script or some awful hack to manually twiddle the LEDs

Controlling LEDs from the Shell - Revision history

Hopspitfire: New page: I wish the device would indicate via flashing LED that I had a message or alert waiting. I didn't find a way to do it via the regular interface, but from the command line I can at least c...