On Tue, 23 Mar 2004 11:51:16 -0500 James Kosin <jkosin@xxxxxxxxxxxxxxxxxx> wrote: > >My DC120 camera is found with no problem when booting into "root" but > >not found in user boot into KDE. The "Digital Camera Tool" >won't > >"add" it, and I don't know what port to list. It is a serial port, > > and there are COM1 & COM2 on my motherboard. > This is probably a simple permissions issue. By default root is the > only user that has authority to talk to hadware. Go to a terminal as > root and type the following: > ls -l /dev/ttyS? > > You should get something back that says for each entry: > crw-rw---- 1 root uucp ..... > > The problem is here that root and group uucp are the only users > allowed to read and write to the comport. > You can fix this one of two ways. (1) change the permissions on the > serial ports to allow everyone to read/write to them, or (2) add the > users that need access to the group uucp. > > (1) to change the permissions: > chmod +r+w /dev/ttyS0 (for com 1) > chmod +r+w /dev/ttyS1 (for com 2) > > (2) to add users to the uucp group, use the tool to configure > groups... or'usermod -G uucp <user-login>' Don't forget that pam may change these permissions back when you log out. If this happens you'll have to edit /etc/security/console.perms to make these the default settings. -- -John (JohnThompson@xxxxxxxxxx)
