Messages in this thread |  | | | From | Mike Kilburn <> | | Subject | Re: writing a parallel port driver to support external hardware | | Date | Wed, 24 Apr 1996 19:27:23 +0200 |
| |
> > Hello, all. > > Some people here are in the process of building a small robot, and have > decided to use a parallel port interface because the hardware's > easier that way. The tricky part is that now they want to make it > controllable from a Linux machine, and I think that means writing > a parallel port device driver. I've never written a device driver > and I barely know more than they do, so I wanted to ask: > - *Do* I need a device driver, or is there a `tip' like > program for the parallel port I can hack into? > - Should I start from scratch, or grab a printer driver > from somewhere? (where?) > - Any books / howtos / faqs you can recommend?
Take a look at the POSIX.4 book from O`Reilly. The kernel device driver part (if needed) will be the least of your problems. Real time apps. under Linux need special consideration. The book covers the user mode issues and I think new kernels support much of the stuff (But no async I/O).
|  |