How to create my own virtual device?

hydraMax · 03-12-2011, 08:01 AM

I want to try to create my own virtual device in Linux. Something simple, for example, a /dev/fortune virtual device that returns a line from fortune() each time you read from it. Could someone please point me in the right direction?

I am willing to do my own research and study, I just need to know where to start. E.g., what to read or what to google, in order to get me where I want to go the fastest. I have some C/C++ and Ruby background.

pike87 · 03-12-2011, 08:29 AM

google:

how to create character device driver on linux

and read LDD

syg00 · 03-12-2011, 08:36 AM

Quote:

Originally Posted by hydraMax

I want to try to create my own virtual device in Linux. Something simple ...

You wish. Nothing is ever "simple" when playing in kernel-space.
Linux Device Drivers is a good start - try here for a link from the author to download the book. Well worth buying IMHO.