Linux Device and driver model

• One of the features that came with the 2.6 kernel is a unifide device and driver model.
• Instead of different ad-hoc mechanisms in each subsystem, the device model unifies  the vision of the devices, drivers, their organization and relationships.
• Allows to minimize code duplication, provide common facilities, more coherency in the code organization.
• Defines base structure types: struct device, struct driver

,

struct bus

type

I

Is visible in userspace through the

sysfs

lesystem,

traditionnaly mounted under

/sys