Writing Device Drivers

Character Driver Structure Overview

Figure 9-1 shows data structures and routines that define the structure of a character device driver. Device drivers typically include the following:

Character Driver Device Access

The shaded device access section in Figure 9-1 illustrates character driver entry points.

Note -

For a description of block drivers and block driver device access, see Chapter 10, Drivers for Block Devices.

Figure 9-1 Character Driver Roadmap