[PATCH][RFC] Backlight addon for dell laptops

[Andrey Borzenkov]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Thursday 04 January 2007 00:38, Richard Hughes wrote:
> On Wed, 2007-01-03 at 22:08 +0100, Erik Andrén wrote:
> > I've developed an addon for hal, making it possible to control the AC
> > and the battery backlight values for Dell laptops using SMBIOS.
>
> Nice one!
>


What about generic support for backlight control via sysfs? E.g. I now 
(2.6.20-rc3) have

{pts/0}% LC_ALL=C ll /sys/class/backlight/toshiba
total 0
- -r--r--r-- 1 root root 4096 Jan  4 11:28 actual_brightness
- -rw-r--r-- 1 root root 4096 Jan  4 11:28 brightness
- -r--r--r-- 1 root root 4096 Jan  4 11:28 max_brightness
- -rw-r--r-- 1 root root 4096 Jan  4 11:28 power
lrwxrwxrwx 1 root root    0 Jan  4 11:16 
subsystem -> ../../../class/backlight/
- --w------- 1 root root 4096 Jan  4 11:28 uevent
{pts/0}% cat /sys/class/backlight/toshiba/actual_brightness
7
{pts/0}% cat /sys/class/backlight/toshiba/max_brightness
7

Does HAL support it (not as far as I can tell)? May be it makes sense to 
integrate Dell in existing kernel framework?

Regards

- -andrey
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iD8DBQFFnLsWR6LMutpd94wRAhi6AJ44YnNzgsnqfYCkCOzealScsl6+XwCghLNe
7EiFjqqHp2rkepmjWpincKc=
=dZX6
-----END PGP SIGNATURE-----