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Date:      Wed, 30 Oct 2002 23:30:24 +0100
From:      Robin Schilham <co9@xs4all.nl>
To:        Anton <FreeBSD@list.ru>, freebsd-questions <freebsd-questions@freebsd.org>
Subject:   Re: Please help me: /dev/lpt0 Device is busy
Message-ID:  <3DC05D80.3020300@xs4all.nl>
References:  <list.freebsd.questions#1347693549.20021030014747@list.ru>

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Anton wrote:
> Hello everybody!
> 
> Please help me with my lpt0
> 
> When I try to put something to lpt0 I see the next:
> 
> ```````````````````````````````````````````````````````````````
> ~# cat > /dev/lpt0
> Oct 30 01:41:58 lizard /kernel: lpt flags 0x0
> Oct 30 01:41:58 lizard /kernel: lpt flags 0x0
> /dev/lpt0: Device busy.
> Oct 30 01:42:02 lizard /kernel: status 4e
> Oct 30 01:42:02 lizard /kernel: status 4e
> ~#
> ```````````````````````````````````````````````````````````````
> 
> `fstat /dev/lpt0` shows empty table.
> 
> Here it is part of dmesg's output:
> 
> ```````````````````````````````````````````````````````````````
> ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
> ppc0: PC87306 chipset (EPP/NIBBLE) in COMPATIBLE mode
> out=55  in=55   tout=10000
> out=aa  in=aa   tout=10000
> out=fe  in=fe   tout=10000
> out=fd  in=fd   tout=10000
> out=fb  in=fb   tout=10000
> out=f7  in=f7   tout=10000
> out=ef  in=ef   tout=10000
> out=df  in=df   tout=10000
> out=bf  in=bf   tout=10000
> out=7f  in=7f   tout=10000
> out=1   in=1    tout=10000
> out=2   in=2    tout=10000
> out=4   in=4    tout=10000
> out=8   in=8    tout=10000
> out=10  in=10   tout=10000
> out=20  in=20   tout=10000
> out=40  in=40   tout=10000
> out=80  in=80   tout=10000
> lpt0: <Printer> on ppbus0
> oldirq 0
> lpt0: Interrupt-driven port
> irq 7 7
> lpt flags 0x0
> status 4e
> lpt flags 0x0
> status 4e
> lpt flags 0x0
> status 4e
> ```````````````````````````````````````````````````````````````
> 
> Here it is part of my kernel config:
> 
> ```````````````````````````````````````````````````````````````
> device          ppc0    at isa? irq 7
> device          ppbus
> device          lpt
> options         PPC_PROBE_CHIPSET # Enable chipset specific detection
> options         LPT_DEBUG       # Printer driver debug
> options         PPC_DEBUG       # Parallel chipset level debug
> ```````````````````````````````````````````````````````````````
> 
> I tried w/o PPC_PROBE_CHIPSET result was the same.
> 
> What can you advice?
> 
> May be I should set my chipset to NIBBLE mode?
> But I don't know how.
> 
> I'm waiting for any propositions
> Anton
> 

Perhaps this is an interesting link:
http://www.mostgraveconcern.com/freebsd/prn.html

Regards,

Robin

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