This repository contains a few simple character device drivers and related utilities for FreeBSD. It is used as part of a tutorial for writing character device drivers. The tutorial is published as a series of articles in the FreeBSD Journal.
| Directory | Description |
|---|---|
| echodev | /dev/echo character device driver demonstrating I/O in articles 1 and 2 |
| echoctl | Utility for controlling and inspecting /dev/echo |
| mappage | /dev/mappage character device driver exporting a single page of RAM |
| maprw | Utility to read data from and write data to memory mappings |
| memfd | /dev/memfd character device providing per-open anonymous memory |