Date: Mon, 8 Mar 2004 22:15:29 +1030 From: Malcolm Kay <malcolm.kay@internode.on.net> To: Stephen Liu <satimis@icare.com.hk>, Kris Kennaway <kris@obsecurity.org> Cc: questions@freebsd.org Subject: Re: MAKEDEV question Message-ID: <200403082215.29256.malcolm.kay@internode.on.net> In-Reply-To: <200403082339.33613.satimis@icare.com.hk> References: <200403081945.16907.satimis@icare.com.hk> <20040308052442.GA57973@xor.obsecurity.org> <200403082339.33613.satimis@icare.com.hk>
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On Tue, 9 Mar 2004 02:09, Stephen Liu wrote: > - snip - > > > > # grep ppc0 /var/run/dmesg.boot > > > ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0 > > > ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode > > > ppc0: FIFO with 16/16/7 bytes threshold > > > ppbus0: <Parallel port bus> on ppc0 > > > > > > I suppose lpt0 is supported. > > > > If your kernel detects it it will be listed in the dmesg: > > > > lpt0: <Printer> on ppbus0 > > lpt0: Interrupt-driven port > > Hi Kris, > > Turned on printer to make following tests > > # dmesg > ..... > ppbus0: <HEWLETT-PACKARD DESKJET 690C> MLC,PCL,PML > plip0: <PLIP network interface> on ppbus0 > lpt0: <Printer> on ppbus0 > lpt0: Interrupt-driven port > ppi0: <Parallel I/O> on ppbus0 > ...... > > ls -l /dev/lpt0 > crw------- 1 root wheel 16, 0 Mar 8 22:48 /dev/lpt0 > > It is there. > > > I skipped following steps > > 1) > # ./MAKEDEV port > > and > 2) > # lptcontrol -i -d /dev/lpt0 > (to set interrupt-driven mode for lpt0) > > and > 3) > # lptcontrol -p -d /dev/lpt0 > (to set polled-mode for lptN) > > > Jumped to; > # lptest > /dev/lpt0 > only strange symbols printed and printing continued without stop until = I > removed the paper tray. Communication between printer and port seemed > working > It could be that your printer does not understand plain ascii text. What = is the make and model. The other possibility is that there is something wrong in the communicati= ons path -- a dud or incorrectly wired cable. Malcolm Kay
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