Kernel-Mode Driver Components

This section introduces the standard routines contained in kernel-mode drivers. Some of these standard driver routines are required; others are optional. The section also introduces driver objects, which contain pointers to each driver's standard routines.

Some drivers interact with a system-supplied port driver or class driver that defines much of the driver's required functionality. For example, a SCSI miniport driver primarily interacts with the SCSI port driver. For such drivers, see the class-specific documentation for details of required and optional driver support.