Hi,
I'm using Fedora Core 6. My ISDN card (Fritz!Card PCI v2) was detected by Fedora
and works flawlessly.
Now, udev sets the permissions on /dev/isdninfo in a very secure way so that I
can't access as a ordinary user.
> [fs@ws2 ~]$ ls -la /dev/isdninfo
> crw------- 1 root root 45, 255 28. Apr 13:23 /dev/isdninfo
I like to have the permissions that way:
> [fs@ws2 ~]$ ls -la /dev/isdninfo
> crw-rw---- 1 root dialout 45, 255 28. Apr 13:23 /dev/isdninfo
How can I configure udev so that the permissions will be set appropriately?
I think the basic permissions are set in /etc/udev/rules.d/50-udev.rules
> [root@ws2 udev]# grep -R isdn /etc/udev/
> /etc/udev/rules.d/50-udev.rules:KERNEL=="isdn*", NAME="%k", MODE="0660"
> /etc/udev/rules.d/50-udev.rules:KERNEL=="isdnctrl*", NAME="%k", MODE="0660"
> /etc/udev/rules.d/50-udev.rules:KERNEL=="isdnctrl0", SYMLINK+="isdnctrl"
What I do understand is that /dev/isdninfo has the mode 0600 after booting (not
0660 as in the mode setting above).
Changing /etc/udev/rules.d/50-udev.rules (even though this is discouraged) to
> KERNEL=="isdn*", NAME="%k", MODE="0660", GROUP="dialout"
showed no effect.
Same goes with creating /etc/udev/rules.d/99-isdninfo.rules:
> KERNEL="isdninfo", MODE="0660", GROUP="dialout"
[1] ("Customizing Udev on Fedora" / "Permissions") suggests that one should
create a .permissions file in /etc/udev/permissions.d/. According to [2] this is
obsolete since udev 053 but I tried nevertheless:
> [root@ws2 udev]# cat /etc/udev/permissions.d/99-isdninfo.permissions
> isdninfo:root:dialout:0644
No effect either.
So basically I am stuck and don't know how to redefine the permissions on
/dev/isdninfo.
Any help is appreciated!
fs
[1] http://docs.fedoraproject.org/udev/
[2] http://www.jetico.com/linux/bcrypt-help/l_probl.htm
