[wplug] gphoto help

[Rick Smith]

On Sun, May 04, 2003 at 07:43:04PM -0400, Jay wrote:
> I am using Debian 3.0r1 and Gphoto 0.43 and KDE 2.2.2-14.  As root, I
> can get gphoto to access my camera.  However, as non-root, I cannot
> access my camera.  I receive the following:
> 
> Error failed to open /dev/ttys1
> Please check the permissions manual.
> 
> If I issue the following:
> 
> jmkramer at shale:~$  ls -l /dev/ttys1
> crw-rw-rw-    1 root     tty        3,  49 Mar 14  2002 /dev/ttys1
> 
> jmkramer at shale:~$  groups
> jmkramer tty cdrom audio dip
> 
> As shown jmkramer is a member of tty
> 
> I also tried setuid for both user and group (didn't work) then changed the user name to my local name:
> shale:/dev# ls -l ttys1
> crwSrwSrw-    1 jmkramer tty        3,  49 Mar 14  2002 ttys1
> 
> It still does not work.  What am I doing wrong.

I don't know.
I'd put permissions back like you found them.
Then I'd ..
1. run these two to see if there is any problem opening the file
  perl -e 'open(FD, "/dev/ttys1") or die "Open: $!\n"'
  perl -e 'open(FD, "> /dev/ttys1") or die "Open: $!\n"'

If there is no message, then the file opened fine.
If there is, then it could be some type of file locking going on?
It's possible to open the file with locks (fcntl(2)), and maybe
something else is running?  Probably not.

2. read the source for gphoto, looking for the error message.
and figure out what was going on.