Date: Sun, 25 Sep 2005 09:51:40 +0200 From: stanley jobson <stanley.jobson@gmx.ch> To: Dan Ponte <dcp1990@neptune.atopia.net> Cc: freebsd-stable@freebsd.org Subject: Re: lpt0 always busy Message-ID: <20050925095140.5bbb3162.stanley.jobson@gmx.ch> In-Reply-To: <20050924163501.GA53285@neptune.atopia.net> References: <20050924180909.78a29487.stanley.jobson@gmx.ch> <20050924163501.GA53285@neptune.atopia.net>
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> > hi, > > i am now trying for weeks to get my lpt0 working without any success > > :( > > > > i always get "device busy" (running lptcontrol, lptest, > > open(/dev/lpt0)). i found a lot of questions about this via google > > and some hints too (e.g. excluding device ppi from kernel) but all > > this didnt help :( > > > > i should mention that my printer connected to lpt0 is a funny gdi > > printer which only works under win98. so my idea was to use qemu to > > run a emulated win98 to get my printer working - but therefore qemu > > needs to be able to open /dev/lpt0 ... > > > > finally i wrote a simple c prog which just calls open(/dev/lpt0) but > > it also always fails with device busy :( > > > > what are the requirements to successfully open lpt0 port (apart from > > having connected a printer to it) ? > > > > does fbsd expects a response from the printer (e.g. ready status)? > > maybe my printer is not able to do this ... if so: what are possible > > workarounds? could i convice the kernel that lpt0 is ready? > > > > thx > > regards, > > stan > > > > ps: i am running fbsd 5.4 > > > Usually, if you get "device busy," it means that the printer is simply > not on or connected properly. Check your parallel cable. unfort. my printer is connected properly and it is on while simply trying to open it with open(/dev/lpt0) - lptest > /dev/lpt0 fails too ... so it seems that fbsd expects some kind of status reply from the printer - correct? if so: how could i by-pass this? (cause my ugly gdi printer is probably not able to answer correctly) i just wonna have access to my parallel port ... thx regards, stan
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