The relationship between device driver and the Linux
system
A device driver provides the
following features:
•A set of routines that communicate
with a hardware device and provide
a uniform interface to the operating
system kernel.
•A self-contained component that
can be added to, or removed from,
the operating system dynamically.
(init_module , cleanup_module )
•Management of data flow and
control between user programs and a
peripheral device.
•A user-defined section of the kernel
that allows a program or a peripheral
device to appear as a `` /dev ''
device to the rest of the system's
software
.
