Hello,
Using OpenBox rc.xml I want to bind W++ & W+- keys for changes on lcd backlight:

W++: increase brightness
(pseudo bash: echo (some data += 1) > /sys/class/backlight/acpi_video0/brightness)
W+-: decrease brightness
(pseudo bash: echo (some data -= 1) > /sys/class/backlight/acpi_video0/brightness)



problem is that I have to execute it as a root and I know it is possible to run it using gksudo 'echo...', but it isn't nice to type my root password each time when I want to perform step of brightness change. Do You know if there is any nice solution for this situation.

Thanks in advance.

I do something similar with xbacklight in my windowmanager (wmii). xbacklight doesn't need root-privileges, may be that works for you, too.
A different approach would be to put your commands in a script and configure sudo in that way that your user can launch those scripts with sudo without a password.

1 members found this post helpful.

Thanks a lot it is very good solution!