To write device drivers for the Solaris OS, you should have the
Be a confident C programmer
Have experience with data structures, especially with linked lists
Understand bit operations
Understand indirect function calls
Understand multithreading (see the Multithreaded Programming Guide)
Be familiar with a UNIX®
Understand the basics of UNIX system and I/O architecture
The most important information you need to have to write a device
driver are the characteristics of the device. Get a detailed specification for the device
you want to drive.
Experience with Solaris OS compilers, debuggers, and other tools will be very helpful
to you. You also need to understand where the file system fits with
the kernel and the application layer. These topics are discussed in this tutorial.