Re: Read from /dev/lp, new patch against 2.1.27/28

Philip Blundell (
Tue, 11 Mar 1997 20:16:22 +0000 (GMT)

On Tue, 11 Mar 1997, Carsten Gross wrote:

> Yes, I know this. It's just a question if it (the ZIP drive for example) is
> an IEEE1284 compatible device and is detected via the device detection
> according to the IEEE standard.

It's not. Nor, as I understand things, are most of the parallel-port
based drives.

> Please correct me if I'm wrong, but I always thought Windows allows you to
> use a ZIP drive and a parallel printer on the same port. At the moment this


> is not possible with Linux, as I know. But it would be nice if the kernel
> auto-detects other hardware, for example the ZIP drive, or a parallel CD-ROM
> - I saw a driver for this too - and blocks the use as normal printer port or
> gives you a small hint.
> I just would like to now if the ZIP drive or other hardware are returning a
> "device id" like the HP printers do. Therefore my first posting was a little
> bit misleading. I'm sorry about it.

What you want is probably the `parport' sharing project. In fact the next
release of this will have your IEEE1284 code incorporated. Take a look at This provides facilities to share one
port between many devices, as well as `plug and play' support and
autodetection of port capabilities.