[CentOS] Linux newbie asks about sonypi on laptop
Shawn M. Jones
smj at littleprojects.org
Sat Jul 30 17:02:13 UTC 2005
Ralph Loizzo wrote:
> Okay. I've been able to set my laptop's screen brighter by working
> with the program spicctrl and the sonypi device.
>
> <SNIP!>
>
> My questions are:
>
> Why do I have to recreate the device every time? Shouldn't it be
> there every time?
Ralph,
If you are running CentOS 4, I believe CentOS 4 uses udev to create
device files at boot. This is a new feature of the 2.6 kernel. This
way the devices in the /dev directory should only represent what is
present on the machine as opposed to having 1000s of device files to
account for every last possibility.
I believe the configuration is handled in /etc/udev, but you should look
at the udev man page to make sure. I seem to recall that there was a
way to configure udev to "keep" certain device files.
I wish I had more information for you. The last time I configured
dynamic device files it was with devfs, which was an earlier attempt at
the same functionality.
Hope this helps,
Shawn M. Jones
More information about the CentOS
mailing list