[CentOS] Linux newbie asks about sonypi on laptop

Sean O'Connell oconnell at soe.ucsd.edu
Sun Jul 31 04:55:30 UTC 2005


On Sat, 2005-07-30 at 11:09 -0500, 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.
> 
> But everytime I boot, I login under my username then have to do the 
> following every time...
> First I go into the bash terminal, then su because I can't do this under 
> my login name
> 
> mknod /dev/sonypi c 10 250  #because sonypi is not listed in /dev - it 
> disappears everytime I shut down
> 
> then I type
> 
> chmod o+w sonypi #because I want to be able under my login name, not 
> root, to set the brightness
> 
> then i exit su
> 
> and type spicctrl --setbrightness=150
> 
> and it works...
> 
> My questions are:
> 
> Why do I have to recreate the device every time?  Shouldn't it be there 
> every time?
> 
> Your comments would be greatly appreciated.

Ralph-

Take a look at the files in /etc/makedev.d 

I think you can do something like create a file in /etc/makedev.d called
sonypi, with the following contents.

c $CONSOLE 10 250 1 1 sonypi


Sean




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