[mdlug] Minicom device permission error [Was: USB device not accepting new address]

[Joseph C. Bender]

R Kannan wrote:
> LANG/ja
> LANG/ko
> LANG/ru
> minicom: cannot open /dev/ttyACM0: Permission denied
> I checked the permissions on the device 'file' and it seems to have the 
> same permission on both machines.
> 
	Care to share what those perms are?

	Generally, if the user isn't part of the group that the port is "owned" 
by and the perms are not at least rw for the group, it's not going to work.

	ls -l output for my EVDO card on my laptop (Ubuntu 6.06) looks like this:

	crw-rw---- 1 root dialout 166,0 2007-01-22 08:31 /dev/ttyACM0

	Then in /etc/group, the dialout entry is as follows:

	dialout:x:20:cupsys,jcbender

	(That being said, I need to investigate why in the world Ubuntu put the 
CUPS user in that group.)

	YMMV of course, depending on your distro and misc whatnots.


-- 
Joseph Bender
Bendorius Consulting
P: 248-434-5580
F: 248-434-5581
jcbender at bendorius com