Date: Fri, 10 May 2002 17:05:18 -0400 (EDT) From: Jai Dhar <jdhar@omega.focalnetworks.net> To: John Utz <john@utzweb.net> Cc: <freebsd-hardware@FreeBSD.ORG> Subject: Re: Parallel port writing Message-ID: <20020510170434.X42739-100000@omega.focalnetworks.net> In-Reply-To: <Pine.LNX.4.44.0205101557443.4473-100000@jupiter.linuxengine.net>
next in thread | previous in thread | raw e-mail | index | archive | help
/dev/ppi0 -> /dev/ppi2 does exist :p For those who are reading, I'm testing via a simple Led circuit.. led connected to data pin one and grounded via ground pins. I'm also using the code snippet used in 'man ppi'. On Fri, 10 May 2002, John Utz wrote: > how about the device in the dev dir? > > ls /dev/ppi doesnt exist on my box, and i am unsure as to how to create > it. > > that's my last idea, best 'o luck! > > > On Fri, 10 May 2002, Jai Dhar wrote: > > > > > device ppc0 at isa? irq 7 > > device ppbus > > device lpt > > device ppi > > > > All there > > > > On Fri, 10 May 2002, John Utz wrote: > > > > > do you have the device in the kernel? i've never gave it any thought, but > > > wouldnt you need device ppi built in? > > > > > > i dont know, i am just guessing.... > > > > > > On Fri, 10 May 2002, Jai Dhar wrote: > > > > > > > I am root, lpd isn't running, and as for ppi.. I tried their exact code > > > > that they have in 'man ppi', and still doesn't work??? > > > > > > > > > > > > On Fri, 10 May 2002, John Utz wrote: > > > > > > > > > you arent root? > > > > > > > > > > or, more likely, lpd owns it! > > > > > > > > > > On Fri, 10 May 2002, Jai Dhar wrote: > > > > > > > > > > > I have a question about writing to parallel ports. > > > > > > I am trying to make a basic C program to write simple data to a parallel > > > > > > port, but when I try, I get an error on opening /dev/lpt0 as "Device Busy" > > > > > > I tried echo 255 > /dev/lpt0, and also got "Device Busy". When looking at > > > > > > all my processes, I didn't see anything that visibly took control of > > > > > > /dev/lpt0. In dmesg, I get both ppc0 and lpt0 detected with an IRQ and IO > > > > > > address fine. What could be wrong? Thank you > > > > > > > > > > > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > > > > with "unsubscribe freebsd-hardware" in the body of the message > > > > > > > > > > > > > > > > -- > > > > > > > > > > John L. Utz III > > > > > john@utzweb.net > > > > > > > > > > Idiocy is the Impulse Function in the Convolution of Life > > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > > > with "unsubscribe freebsd-hardware" in the body of the message > > > > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > > with "unsubscribe freebsd-hardware" in the body of the message > > > > > > > > > > -- > > > > > > John L. Utz III > > > john@utzweb.net > > > > > > Idiocy is the Impulse Function in the Convolution of Life > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-hardware" in the body of the message > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-hardware" in the body of the message > > > > -- > > John L. Utz III > john@utzweb.net > > Idiocy is the Impulse Function in the Convolution of Life > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hardware" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020510170434.X42739-100000>