Every USB device exposes a device descriptor that indicates the device's class information, vendor and product identifiers, and number of configurations. Each configuration exposes it's configuration descriptor that indicates number of interfaces and power characteristics.
2024年1月17日
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2023/11/10 · The purpose of the device descriptor is to let the host know what specification of USB the device complies with and how many possible ...
2024/01/17 · A USB device provides information about itself in data structures called USB descriptors. This section provides information about various ...
BOS Descriptor Device Capability Type Codes ; 01H, Defines the set of Wireless USB-specific device level capabilities, Wireless USB Specification, Revision 1.1 - ...
USB Device Descriptors. Determine the capabilities and configuration of a device using descriptors from the USB specification.