Choosing a Device Driver Model

Choosing a Device Driver Model

You can control a device connected to the EISA bus through a user-level device driver, a kernel-level device driver, or a kernel-level memory-mapping device driver.

The simplest way to access an EISA device is through a user-level driver that controls the device by directly interfacing with the EISA-bus adapter.

When to Write a User-level Device Driver
When to Write a Kernel-level Device Driver
When to Write a Kernel-level Memory-mapping Device Driver