CS 3733 Operating Systems

Reading: Section 3.7 and 3.10 of PUP

In this lecture we'll discuss device control and management of the audio device to illustrate how to do device management.

• Review the concept of device independent I/O.

• Look again at the I/O library for implementing input and output.

• The ioctl call.

• Blocking versus non-blocking I/O

• The fcntl call.

SKILL: Understand how to access information about devices in Unix