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USB Services Library (USL)

The USB Services library is the programming interface that USB device drivers use to communicate with the USB on a Macintosh computer. The USL provides the services necessary to find a device with the appropriate interface, open an interface to the device, open the device, instantiate the appropriate pipe connections, determine device status, and perform read and write transactions with the device. For additional information about the USL, see USB Services Library Reference


© 1998 Apple Computer, Inc. – (Last Updated 23 Nov 98)

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