[freebsd-stable@freebsd.org]: lpt0 always busy

[Robert Zagarello]

  Can you get hold of a simpler printer, one that uses
the HP500 driver for example, and test your port?  I
tend to think it's a driver issue, at least until you
can rule it out.  I've had this problem on a NetBSD
system, for example, which got solved by switching to
just such a simpler printer and driver.

BZAG
=====================================

--- Stanley Jobson <stanley.jobson at gmx.ch> wrote:

> > > i have a separate box running win98. from this
> box i am able to use the
> > > printer with the orig vendor driver without any
> problem ...
> > 
> > Hmm, well it's possible the serial port is
> broken..
> 
> maybe ...
> 
> > 
> > > > Are you sure nothing else is using the port?
> (lpd, cups, etc)
> > >
> > > i think so: lpd is not running and lsof | grep
> lpt doesnt show anything
> > > either : (
> > 
> > fstat /dev/lpt0
> > and
> > fstat /dev/lpt0.ctl
> > 
> > ?
> 
> root at tyrael seb $ fstat /dev/lpt0.ctl 
> USER     CMD          PID   FD MOUNT      INUM MODE 
>        SZ|DV R/W NAME
> root at tyrael seb $ fstat /dev/lpt0
> USER     CMD          PID   FD MOUNT      INUM MODE 
>        SZ|DV R/W NAME
> root at tyrael seb $ 
> 
> > 
> > > so i guess there could be a prob with the
> ready/status checking
> > > procedure
> > 
> > This consists of checking the BUSY pin on the
> port..
> > Parallel ports are (sans ECP/EPP extras) very very
> simple.
> > 
> > Have you tried using lptcontrol to put it into
> simple mode?
> 
> root at tyrael seb $ lptcontrol -s -d /dev/lpt0.ctl 
> root at tyrael seb $
> 
> > What do you see in dmesg?
> 
> lpt0: switched to interrupt-driven standard mode
> 
> looks that everything is ok - not ?
> but open(/dev/lpt0) still complains about "device
> busy" ...
> 
> thx
> regards,
> stan
> 
> 
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