lpinfo -v doesnt shows my new backend

shermin sherminismail at gmail.com
Tue Aug 5 05:15:23 PDT 2008


Hi,
My list_devices return successful and in usb.c ,it is returning CUPS_BACKEND_OK.What that means.?I am still unable to find the signal 11 crash.
shermin

> shermin wrote:
> > Hi,
> > I checked the log output and it shows
> >      I [04/Aug/2008:11:26:59 +0400] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=27920)
> > I [04/Aug/2008:11:27:02 +0400] Started "/usr/lib/cups/cgi-bin/admin.cgi" (pid=27921)
> > I [04/Aug/2008:11:27:02 +0400] Started "/usr/lib/cups/daemon/cups-deviced" (pid=27922)
> > E [04/Aug/2008:11:27:02 +0400] [cups-deviced] PID 27933 (card_usb) crashed on signal 11!
> > What it means????
>
> Signal 11 is "segmentation fault", which usually means you tried to
> dereference a NULL pointer.
>
> > Also in the usb.c file if i have the command line arguments is 1,it just list the uri and return CUPS_BACKEND_OK.I am always getting arguments as 1 not 6 or 7.What could be the reason.?
>
> You'll get argc == 1 for discovery, 6 or 7 for printing.
>
>  > How will we get the 6 or 7 command line arguments??
>
> When printing, you'll get the complete command-line - 6 when using a
> print driver and 7 when doing raw printing.
>
> > Also what i understood is that after writing my custom backend it should display in the cups web page while adding the printer.Is that correct right?
>
> Yes, as long as your backend writes one or more valid information
> lines, as documented in "man backend".
>
> --
> ______________________________________________________________________
> Michael R Sweet                        Senior Printing System Engineer
>





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