Wine, DC120 cam, and OneTouch Scanner problems.

[John Thompson]

On Tue, 23 Mar 2004 11:51:16 -0500
James Kosin <jkosin at beta.intcomgrp.com> 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 at new.rr.com)