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Embedded.com: Linux-based USB Devices

Dec 23, 2002, 05:30 (0 Talkback[s])
(Other stories by Bill Gatliff)

"Linux-based USB devices use one of three different strategies for communicating with USB hosts.

"The most ambitious and complicated devices use custom-written kernel modules to implement sophisticated, high-level protocols that run over the standard USB bus. A corresponding custom driver and applications for the USB host complete the connection.

"Other Linux-based USB devices use the bus as a simple, point-to-point serial connection to an application running on the host. The host application uses the USB programming interface provided with the host operating system, but otherwise behaves as though it were communicating through a typical serial port..."

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