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41 lines
1.1 KiB
ReStructuredText
41 lines
1.1 KiB
ReStructuredText
4 years ago
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=================
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USB Protocol Core
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=================
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USB Protocol Core is a part of the USB Device Stack library. It provides basic
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macro definitions, data structures and API functions which are compliant with
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USB specification version 2.0.0/2.0.1 for user.
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In addition, it provides interfaces of USB descriptor searching for the upper
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layer to use, which is especially helpful in the USB enumeration process.
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Features
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--------
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* Packaging USB device, configuration, interface, endpoint descriptors.
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* Getting the descriptor length or type from an assigned USB descriptor.
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* Getting VID, PID value from an assigned USB descriptor.
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* Getting the total length of an USB configuration descriptor.
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* Finding the next valid descriptor in a given USB descriptor.
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* Finding an endpoint descriptor in a given USB descriptor.
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* Finding a specific descriptor by an assigned descriptor type.
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* Finding a configure descriptor by an assigned configure value.
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* Finding a string descriptor by an assigned string index.
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Applications
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------------
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N/A
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Dependencies
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------------
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N/A
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Limitations
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-----------
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N/A
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