OESF Portables Forum

Model Specific Forums => Cosmo Communicator => Cosmo Communicator - Linux => Topic started by: cam1965 on February 23, 2020, 04:26:40 pm

Title: backlight keyboard
Post by: cam1965 on February 23, 2020, 04:26:40 pm

Hi,
Is there a way to enable backlight keyboard in linux ?
I saw /sys/class/leds, but I don' t know where is  the file that controls the brightness of keyboard.
Thank you .

Title: backlight keyboard
Post by: Adam Boardman on February 27, 2020, 08:06:59 am

The wiki has lots of useful info including backlight:
https://github.com/gemian/gemian/wiki/LEDs#cosmo-leds (https://github.com/gemian/gemian/wiki/LEDs#cosmo-leds)

Its open to all to update and add findings.

Title: backlight keyboard
Post by: Ben10 on February 27, 2020, 09:14:48 am

Can this be of any help? Different device, chip and Leds distribution, so since it is no c/p solution it is beyond my skils, but I "smell" for someone with more knowledge then me, It should be doable...

https://talk.maemo.org/showpost.php?p=14283...mp;postcount=53 (https://talk.maemo.org/showpost.php?p=1428334&postcount=53)

If needed for comparation:
http://wiki.maemo.org/N900_Hardware_LED (http://wiki.maemo.org/N900_Hardware_LED)

Title: backlight keyboard
Post by: cam1965 on February 27, 2020, 06:56:10 pm

Quote from: Adam Boardman

The wiki has lots of useful info including backlight:
https://github.com/gemian/gemian/wiki/LEDs#cosmo-leds (https://github.com/gemian/gemian/wiki/LEDs#cosmo-leds)

Its open to all to update and add findings.

Hi Adam.
Unfortunately , didn´t work . I´ve tried echo 40 > proc/aw9524_led_proc and  nothing happens. Also with 41 , etc.
Thank you again.

Title: backlight keyboard
Post by: Adam Boardman on February 28, 2020, 09:28:44 am

Well it works for me, I'd try the 45 first as that's most noticeable, 40 turns it off...

Title: backlight keyboard
Post by: cam1965 on February 28, 2020, 10:36:32 am

Quote from: Adam Boardman

Well it works for me, I'd try the 45 first as that's most noticeable, 40 turns it off...

Reinstalled debian and everything works fine.
Thank you so much again !!!

Title: backlight keyboard
Post by: AGdesigns-NL on June 25, 2020, 12:07:16 pm

somehow with V22 FW the RGB LED (Blue caps  light) command will reboot the device. Keyboard is working without a problem.
any tips?