Namespace Namespace Reference

Detailed Description

of the device belongs to this class. : The default device power management operations of this class. : The private data of the driver core, no one other than the driver core can touch this.

A class is a higher-level view of a device that abstracts out low-level implementation details. Drivers may see a SCSI disk or an ATA disk, but, at the class level, they are all simply disks. Classes allow user space to work with devices based on what they do, rather than how they are connected or how they work.