Universal SERIAL Bus (USB) is a communications architecture that gives a personal
computer (PC) the ability to interconnect a variety of devices using a simple four-
wire cable. The USB is actually a two-wire SERIAL communication link that runs at
either 1.5 or 12 megabits per second (mbs). USB protocols can configure devices
at startup or when they are plugged in at run time. These devices are broken into
various device classes. Each device class defines the common behavior and
protocols for devices that serve similar functions. Some examples of USB device
classes are shown in the following table
Visual C++ source code for adding GPS units to PC desktop and Notebook exchange data from SERIAL port to GPS devices support for NMEA-0183 GPS Standard.
This book is for developers who design and program devices that use the
Universal SERIAL Bus (USB) interface. The goal is to introduce you to USB
and to help you get your devices up and communicating as quickly and easily
as possible.
