udev support

[nestu]

Hi, Nick!
Nick Hudson wrote:
> I did some testing this afternoon and everything seems to be working as
> far as udev goes.  Looks like all of my devices are created under /dev
> correctly except for permissions.  Now I found this kind of strange
> becuase devices like /dev/null and /dev/dsp are not accessible by a user
> account.  Here is what the perms look like for those two:
> 
> bash-3.00# ls -la dsp
> crwx------  1 root users 14, 3 Aug  7 12:29 dsp
> 
> bash-3.00# ls -la null
> crwx------  1 root users 1, 3 Aug  7 07:29 null

/me wonders.... have you changed default perms for new nodes 
to 0660 in /etc/udev/udev.conf? I have seen these node on my 
dad's box, and they are:
root at Sinosuke ~ # ls -lh /dev/null
crw-rw-rw-  1 root root 1, 3 2004-08-07 19:35 /dev/null
root at Sinosuke ~ # ls -lh /dev/dsp
lrwxrwxrwx  1 root root 9 2004-08-07 17:35 /dev/dsp -> sound/dsp
root at Sinosuke ~ # ls -lh /dev/sound/dsp
crw-rw----  1 root audio 14, 3 2004-08-07 17:35 /dev/sound/dsp

/dev/null has 0666 as I created it with those perms (and so 
does the example POST_INSTALL I submitted with my first mail 
of this thread):

root at Sinosuke ~ # mount --bind / DEV/
root at Sinosuke ~ # ls -l DEV/dev
drwxr-xr-x   2 root root    71 2004-08-07 13:38 ./
drwxr-xr-x  21 root root  4096 2004-07-19 17:32 ../
crw-------   1 root root  5, 1 2004-08-07 17:35 console
prw-------   1 root root     0 2004-08-07 13:25 initctl|
srw-rw-rw-   1 root root     0 2004-08-07 13:38 log=
crw-rw-rw-   1 root root  1, 3 2004-08-06 16:41 null
-rw-r--r--   1 root root 57344 2004-08-07 13:38 .udev.tdb

If you have had a look at udev's POST_INSTALL you should 
understand the above. Mmmm, seems udev still creates a 
couple of nodes on the fs and not on ramfs. Strange, I could 
nearly swear only null and console show up if I boot from an 
iso and mount the device. I wonder how they got here... oh 
well, another thing to look at! ;)

> Overall things went pretty well.  I had to recompile my NVIDIA kernel
> module with the new sysfs patch before it would work and I had to make a
> change in my xorg.conf file for my mouse to read from a diffrent device.
> Other than that and the perm problem all is well.  Once I can figure out
> the perm problem I will start working on the dbus and hal modules then
> things should get intresting.

Coolio! ;) About the default perms, florin has sent me a 
couple of files to see some perms to ship with udev today. I 
will have a look at those, and reach back with any news. 
I'll have another look on  some doc on how to write udev 
config files, and sum up something simple so we can all put 
together some nice files, if needed. First I have to read 
florin's files! ;) BTW, thanks to florin and Jens (aka 
perldude) too since they have had their share of udev bugging !

> Nick
Thanks for the testing, pal
CU,
Jaime ;)))
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