[Patch] linux: serial backend find too many ports

[Michael Sweet]

Bart Hartgers wrote:
> When called without arguments, the serial backend on linux lists all
> potential serial ports instead of all present serial ports.
> 
> This happens because under Linux additional serial ports are configured using the device node. So this node needs to be present for any potential port, and serial finds it and lists it.
> 
> I fixed this by using an (Linux-specific) ioctl to check whether the serial port was configured, and if not, skip it. This only lists those configurable ports that are actually setup. Ports that do not
> support the ioctl (i.e. are always configured/present) are listed as before.
> 
> Please (feel free to) apply!
> 
> Patch is against 1.2rc2 at
> http://etpmod.phys.tue.nl/bart/cups-serial-backend-linux-12rc2.patch.gz

Please submit a STR for this at:

     http://www.cups.org/str.php

Thanks!

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Publishing Software        http://www.easysw.com