By Edmar Lloyds R. Basuel
On Friday, 15 September 2006 (9:00 am) at ICS LH-4

Abstract

The use of different USB devices is getting quite common nowadays because of its easy use and connection. Exchange of information with the host computer makes use of a disk included upon purchase of the USB device called device driver. It helps in understanding the different processes upon which the “downstream” and “upstream” of data happens between the host computer and the USB device. The framework upon which the configuration and communication protocol between the two systems translates OS mandated function calls into USB device specific calls.

USB device drivers establish logical communication channels, called "pipes" to the various endpoints on a USB device. The characteristics of a pipe are determined by the endpoint characteristics, which are indicated in the endpoint descriptor structure. A pipe is a software association between an endpoint and a USB device driver. At implementation level, pipes can be thought of as software channels using function calls within the USB system software in order to communicate with their associated endpoints.

Author Biography

Edmar Lloyds R. Basuel is a senior student of the Bachelor of Science in Computer Science. He is the son of Mr. Ernesto Basuel and Mrs. Oliva R. Basuel. He is currently residing at Brgy. Santo Angel San Pablo City, Laguna.