hpoj-devel

[hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Tim W. <tw...@re...>]

Hi,

I would like to programmatically obtain the IEEE 1284 Device ID of a
device that HPLIP can drive.  With HPOJ, I could use the ptal-devid
command to do this.

I don't mind doing the work on it, but which approach would you
prefer?:

1. Separate executable 'hp-devid' that just takes -p/-d options
2. Additional option for 'hp-info'

Thanks,
Tim.
*/

Re: [hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Till K. <til...@gm...>]

AS HPLIP does not grab the devices permanently, you can also use the 
independent programs

http://www.linuxprinting.org/download/printing/getusbprinterid.pl

or

http://www.linuxprinting.org/download/printing/usb_id_test.c

The code of the Perl version I use in printerdrake of Mandriva Linux.

The programs work with all USB printers, also non-HP printers.

    Till


Tim Waugh wrote:
> Hi,
> 
> I would like to programmatically obtain the IEEE 1284 Device ID of a
> device that HPLIP can drive.  With HPOJ, I could use the ptal-devid
> command to do this.
> 
> I don't mind doing the work on it, but which approach would you
> prefer?:
> 
> 1. Separate executable 'hp-devid' that just takes -p/-d options
> 2. Additional option for 'hp-info'
> 
> Thanks,
> Tim.
> */

Re: [hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Tim W. <tw...@re...>]

On Thu, Jun 09, 2005 at 03:10:06PM +0200, Till Kamppeter wrote:

> AS HPLIP does not grab the devices permanently, you can also use the 
> independent programs
> 
> http://www.linuxprinting.org/download/printing/getusbprinterid.pl
> 
> or
> 
> http://www.linuxprinting.org/download/printing/usb_id_test.c
> 
> The code of the Perl version I use in printerdrake of Mandriva Linux.
> 
> The programs work with all USB printers, also non-HP printers.

Yes, indeed, but that doesn't really help.  I would still have to
parse an ID like 'hp:/usb/DESKJET_990C?serial=US05N1J00XLG' to work
out which device to use.

Much easier would be a program like hp-devid (attached).

Tim.
*/

Re: [hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Till K. <til...@gm...>]

I use "lpinfo -v" to get available "hp://..." URIs. To associate 
/dev/usb/... devices to them, I do "getusbprinterid.pl <device>" and 
find the "hp://..." URI which contains the "MODEL" or "MDL" field of the 
detected ID string right after "hp://usb/" and, if available, matches 
the serial number.

To determine whether a printer is supported by HPLIP already before 
installing/starting HPLIP I match the '<model name="...">' in 
/usr/share/hplip/data/xml/models.xml against the "MODEL" or "MDL" field 
of the detected ID string. The HPLIP RPM I have made in a way that 
/usr/share/hplip/data/xml/models.xml is in a separate RPM and this 
separate RPM is always installed. printerdrake installes the rest of 
HPLIP when it detects a supported printer.

    Till



Tim Waugh wrote:
> On Thu, Jun 09, 2005 at 03:10:06PM +0200, Till Kamppeter wrote:
> 
> 
>>AS HPLIP does not grab the devices permanently, you can also use the 
>>independent programs
>>
>>http://www.linuxprinting.org/download/printing/getusbprinterid.pl
>>
>>or
>>
>>http://www.linuxprinting.org/download/printing/usb_id_test.c
>>
>>The code of the Perl version I use in printerdrake of Mandriva Linux.
>>
>>The programs work with all USB printers, also non-HP printers.
> 
> 
> Yes, indeed, but that doesn't really help.  I would still have to
> parse an ID like 'hp:/usb/DESKJET_990C?serial=US05N1J00XLG' to work
> out which device to use.
> 
> Much easier would be a program like hp-devid (attached).
> 
> Tim.
> */
> 
> 
> ------------------------------------------------------------------------
> 
> #!/usr/bin/env python
> #
> # Based on HPLIP info.py:
> 
> # (c) Copyright 2003-2004 Hewlett-Packard Development Company, L.P.
> #
> # This program is free software; you can redistribute it and/or modify
> # it under the terms of the GNU General Public License as published by
> # the Free Software Foundation; either version 2 of the License, or
> # (at your option) any later version.
> #
> # This program is distributed in the hope that it will be useful,
> # but WITHOUT ANY WARRANTY; without even the implied warranty of
> # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> # GNU General Public License for more details.
> #
> # You should have received a copy of the GNU General Public License
> # along with this program; if not, write to the Free Software
> # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
> #
> # Author: Don Welch
> #
> 
> 
> # Std Lib
> import sys
> import os
> import getopt
> import re
> 
> sys.path.append ("/usr/share/hplip")
> 
> # Local
> from base.g import *
> from base import device, service, status, utils
>     
> log.set_level ('none')
> 
> try:
>     device_uri = sys.argv[1]
> except:
>     device_uri = utils.getInteractiveDeviceURI( "usb" )
> 
> try:
>     d = device.Device( None, device_uri, None )
> except Error:
>     log.error( "Error opening device. Exiting." )
>     sys.exit(0)
> 
> try:
>     s = None
>     try:
>         s = service.Service()
>     except Error:
>         log.error( "Unable to contact services daemon. Exiting." )
>         sys.exit(0)
>     
>     try:
>         data = s.queryDevice( d.device_uri, 0, STATUS_PRINTER_IDLE, False )
>     except Error:
>         log.error( "Device query failed." )
>     else:
>         print data["deviceid"]
> 
> finally:
>     log.debug( "Closing services..." )
>     if s is not None: 
>         s.close()
>     if d is not None and d.io_state == IO_STATE_HP_OPEN:
>         d.close()
> 

Re: [hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Tim W. <tw...@re...>]

On Thu, Jun 09, 2005 at 03:31:12PM +0200, Till Kamppeter wrote:

> I use "lpinfo -v" to get available "hp://..." URIs. To associate=20
> /dev/usb/... devices to them, I do "getusbprinterid.pl <device>" and=20
> find the "hp://..." URI which contains the "MODEL" or "MDL" field of the=
=20
> detected ID string right after "hp://usb/" and, if available, matches=20
> the serial number.

Okay.  Well, I think I'll just ship hp-devid along with the Fedora
Core printer configuration tool for the time being, since that fits
into the existing code more easily.

> To determine whether a printer is supported by HPLIP already before
> installing/starting HPLIP I match the '<model name=3D"...">' in
> /usr/share/hplip/data/xml/models.xml against the "MODEL" or "MDL"
> field of the detected ID string. The HPLIP RPM I have made in a way
> that /usr/share/hplip/data/xml/models.xml is in a separate RPM and
> this separate RPM is always installed. printerdrake installes the
> rest of HPLIP when it detects a supported printer.

That's clever, but isn't that information already in foomatic?

Tim.
*/

Re: [hpoj-devel] HPLIP: equivalent of ptal-devid wanted

[Till K. <til...@gm...>]

Tim Waugh wrote:
>>To determine whether a printer is supported by HPLIP already before
>>installing/starting HPLIP I match the '<model name="...">' in
>>/usr/share/hplip/data/xml/models.xml against the "MODEL" or "MDL"
>>field of the detected ID string. The HPLIP RPM I have made in a way
>>that /usr/share/hplip/data/xml/models.xml is in a separate RPM and
>>this separate RPM is always installed. printerdrake installes the
>>rest of HPLIP when it detects a supported printer.
> 
> 
> That's clever, but isn't that information already in foomatic?
> 

Foomatic only contains the info which PostScript->Printers-Own-Language 
filter is needed. For HP printers it is usually HPIJS for inkjets or 
PCL-5 devices, "pxlmono" for PCL-6 devices, "pnm2ppa" for the old PPA 
devices, and "Postscript" (with manufacturer-supplied PPD) for 
PostScript devices. HPLIP is independent of this. It works with most not 
to old HP printers, also PostScript or PCL-6 models which do not need 
HPIJS. HPLIP is a low-level driver framework which serves for accessing 
bi-di functions, as 4-edge full bleed, ink level and status check, 
nozzle cleaning, scanning, memory card reading. And this is completely 
independent of the conversion of incoming PostScript to the printer's 
language.

    Till