Use a device driver and read()/write()/ioctl()

Forum: The Linux Kernel Hackers' Guide
Re: writing/accessing modules (Jones MB)
Keywords: module
Date: Wed, 01 Oct 1997 14:12:17 GMT
From: Michael K. Johnson <[email protected]>

There's a whole huge section of the KHG on writing device drivers. Register a character device driver and use either read()/write() or ioctl() to communicate between the user-level app and your module.