Ok, well I found the answer after a lot of looking.
In the directectory

/etc/udev/permissions.d

the file

50-udev.permissions

has the default permissions for all of the devices.
for serial devices
changing
# serial+dialup devices
ttyS*:root:uucp:0666
ippp*:root:uucp:0660
isdn*:root:uucp:0660
isdnctrl*:root:uucp:0660
capi*:root:uucp:0660
dcbri*:root:root:0660
ircomm*:root:uucp:0660
#ttyUSB*:root:uucp:0660  #
ttyUSB*:root:uucp:0666    #changing this to 666 changed the default
permissions
tts/[0-9]*:root:uucp:0660
tts/USB[0-9]*:root:uucp:0660


This was much to hard to find and correct.  There should be a gui interface
to configure this or
the docucmentation should point you directly to this file.

Chip

On 8/24/06, Brian Henning <[EMAIL PROTECTED]> wrote:

I think the "right" way to handle this issue is to ensure that every
process that needs to access the device be run under a user who is a
member of the group owner of the usb device.

Nevertheless, I'd be interested in hearing another answer to this too,
since I can't seem to get CUPS to run as the right user that has rw
access to my USB printers (and end up manually setting o+rw on
/dev/usb/lp* after every reboot and/or hot plug).

~Brian

Ralph Blach wrote:
> I have USB serial adapter which I plug into my redhat Rhel 4
system.  When
> USBserail port is
> plugged in, its permissions are always gu+rw but not other.
>
> Where do I modify hotplug or the USB conf files so the USB serial port
> which
> are plugged
> in will have there permissions set to guo+rw?
>
> Thanks
>
> Chip

--
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Brian A. Henning
strutmasters.com
336.597.2397x238
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