/dev/lp0 missing - how create a device?

f.kater · Guru Joined: 23 May 2002 Posts: 342 Location: Berlin

Hi,
I am trying to get my printer run with cups and I realize that /dev/lp0 is missing. How can I create /dev/lp0? My kernel was compiled with parallel support...
Thanks,
Felix

Saphlyx · Posted: Sun Jun 16, 2002 6:51 pm Post subject: mknod

Hi.

The way to do this is to use the 'mknod' command. This command creates entries the /dev file system. Each file has a major code, minor code, and type. You can learn about the command my doing:

$ man mknod

You can learn about which devices are given which major and minor codes by looking in the '/usr/src/linux/Documentation/devices.txt' file.

So to create /dev/lp0 you can do this:

$ mknod /dev/lp0 c 6 0

You need to be root to do this of course.

Steve

Scrapz · n00b Joined: 06 Jun 2002 Posts: 21

You probably cant use mknod with devfs... if you have devfs enabled (default) then edit /etc/devfsd.conf and there should be a line or two to uncomment. Its pretty well commented, so it should be easy. Restart, and you're done!

TTFN,
Scrapz :wink:

delta407 · Posted: Tue Jun 18, 2002 6:06 pm Post subject:

devfs should automatically create an LP0. (Right, and don't use mknod.) In addition to parallel support, you have to enable "Parallel printer support" under "Character devices" in your kernel config.

Guest · Posted: Thu Jun 20, 2002 11:06 am Post subject:

Hi friends,

thanks for all these information. However, I still didn't succeed to get my desired /dev/lp0.

If have compiled a new kernel with parallel support and parallal printer support (as mentioned above). Then I checked /etc/devfsd.conf - and here seems to be missing something: I can't find any line or section dealing with /dev/lp0. So I really do not know what to uncommend... The man pages are too detailed for me.
Isn't there a standard devfsd.conf where parallel support is activated? Do you have an example?

Thank You
Felix

sulu · Posted: Thu Jun 20, 2002 2:43 pm Post subject:

Hmmmm

Thats strange.

I had the same problem but compiling the kernel with parallel-port-support and parallel-printer-support and something like "pc-style hardware" did the job.

No change in devfs.conf was required.

Are sure that you're using the new kernel?

Did you check the kernel.log ?

f.kater · Guru Joined: 23 May 2002 Posts: 342 Location: Berlin

Finally ....

Thanks sulu for giving me at least the hint that it *should* work that way. So I started to concider somthing non-gentoo. After I had switched my BIOS parallel port from ECC to NORMAL there was a /dev/lp0 automatically. I wanted to tell the comunity that this problem may be solved by changing BIOS options.

Thanks
Felix

user124 · Tux's lil' helper Joined: 02 May 2002 Posts: 86

thanks to all..

forum search is cool

user124