USB Printer Install help needed

[Smith, Herb]

> -----Original Message-----
> From: users-bounces at lists.fedoraproject.org [mailto:users-
> bounces at lists.fedoraproject.org] On Behalf Of Tim Waugh
> Sent: Wednesday, June 23, 2010 6:21 AM
> To: Community support for Fedora users
> Subject: RE: USB Printer Install help needed
> 
> On Tue, 2010-06-22 at 13:51 -0500, Smith, Herb wrote:
> > That command (executed as root) produced absolutely no response.
> 
> Let's try to find out what the usb backend is actually up to.
> 
> Could you please run this command as root and attach the output?:
> 
> strace /usr/lib/cups/backend/usb 2>&1 | tail -n +200
> 
> It might be that you have something (perhaps the 'hp' backend?) using libusb with
> the printer, preventing the usblp kernel module from getting access.
> 
> Tim.
> */

I'm not sure how helpful this is, but I'm not sure what you're looking for:

strace /usr/lib/cups/backend/usb 2>&1 | tail -n +200 
open("/dev/usblp1", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp1", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp1", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp2", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp2", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp2", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp3", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp3", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp3", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp4", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp4", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp4", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp5", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp5", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp5", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp6", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp6", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp6", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp7", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp7", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp7", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp8", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp8", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp8", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp9", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp9", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp9", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp10", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp10", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp10", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp11", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp11", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp11", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp12", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp12", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp12", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp13", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp13", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp13", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp14", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp14", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp14", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usblp15", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/lp15", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory) 
open("/dev/usb/usblp15", O_RDWR|O_EXCL|O_LARGEFILE) = -1 ENOENT (No such file or directory)
exit_group(0)                           = ?

Herb