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 its configuration descriptor that indicates number of interfaces and power characteristics.
2024年1月17日
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 of USB it ...
2024/01/17 · This section provides information about device, configuration, interface, and endpoint descriptors and ways to retrieve them from a USB device.
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USB devices report their attributes using descriptors, which are data structures with a defined format. Each descriptor begins with a byte-wide field ...
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 ...
USB defines class code information that is used to identify a device's functionality and to nominally load a device driver based on that functionality.
The Interface Descriptor (USB_INTERFACE_DESCRIPTOR) defines the collection of endpoints. This interface supports a group of pipes that are suitable for a ...
This tool will traverse through the binary data, and translate it into something human-readable, using the official documents from USB.org. The three types of ...
2024/03/06 · The USB driver stack uses bcdDevice, along with idVendor and idProduct, to generate hardware and compatible IDs for the device.
The BOS descriptor defines a root descriptor that is similar to the configuration descriptor, and is the base descriptor for accessing a family of related ...