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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How do I read the USB device descriptor?
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What is the device descriptor?
USB devices report their attributes using descriptors, which are data structures with a defined format. Each descriptor begins with a byte-wide field ...
The device descriptor includes information such as what USB revision the device complies to, the Product and Vendor IDs used to load the appropriate drivers and ...
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 ...
The Interface Descriptor (USB_INTERFACE_DESCRIPTOR) defines the collection of endpoints. This interface supports a group of pipes that are suitable for a ...
2024/01/17 · The device descriptor contains information about a USB device as a whole. This topic describes the USB_DEVICE_DESCRIPTOR structure and ...
BOS Descriptor Device Capability Type Codes ; 01H, Defines the set of Wireless USB-specific device level capabilities, Wireless USB Specification, Revision 1.1 - ...
USB Descriptors. All USB devices have a hierarchy of descriptors which describe to the host information such as what the device is, who makes it, what version ...
2020/08/11 · Enumeration within a USB system is a process where the host detects the presence of a device, determines what type of device is connected, and ...
USB Device Descriptors. Determine the capabilities and configuration of a device using descriptors from the USB specification.