Re: [hpoj-devel] preliminary PML/scanning support

[Joe P. <joe...@sn...>]

On Wednesday 11 April 2001 10:50 pm, PASCHAL,DAVID (HP-Roseville,ex1) wrote:
> Hi,
>
> I just checked in some more code changes, mostly regarding adding PML
> support to libptal.  It works pretty well over parallel and USB, but
> there's still some more development and cleaning up to do, including adding
> JetDirect support.  Do a "cvs update" to pick up the new changes, then
> re-run the configure script, make, and make install.
>
> Of particular interest is the new "ptal-hp" command-line application, which
> has various options for device status/control, including setting the device
> clock, reading the LCD contents (like xojpanel), and PML scanning.  At the
> moment, scanning only works on the LaserJet 1100A/1220/3200, and I'm still
> trying to get it working on the OfficeJets, but I figured I might as well
> check in what I have right now and keep working on it.  One intention
> behind ptal-hp is to serve as a prototype and testbed for future
> development on xojpanel, xhpcontrol (a replacement for xojpanel), and a
> unified SANE backend for the supportable OfficeJets and LaserJets.
>

The clock-setting feature works on the 600. Thanks for adding it. 

'ptal-hp mlc:par:0 display' returns the lcd contents.

'ptal-hp mlc:par:0 device' returns "(unavailable)" for each OID requested. I 
found the OIDs in ptal-hp.c and compared them to the output from 'hpo 
listpml'. Those I looked for weren't in the list. Maybe the 600 doesn't 
support them?


> I added to the INSTALL file a little bit of getting-started information
> about ptal-hp, but later I need to go back and overhaul the documentation,
> since it's gotten rather disorganized during my recent coding frenzies. 
> :-)

That would be helpful.


> Joe, thanks for your xojpanel patch.  Shall I check it into CVS to serve as
> a baseline for further development? 

That would be fine, as long as I didn't break anything in it.

> I haven't yet gotten around to documenting the new PTAL API, but if you'd
> like to go ahead and take a stab at switching xojpanel over to PTAL, you
> can use apps/cmdline/ptal-hp.c as an example.

I'll see what I can do with it, but I don't know yet how far I'll get. Any 
documentation you add / improve will probably help.

-- 
Joe