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 Device Descriptor (USB_DEVICE_DESCRIPTOR) is the root of the descriptor tree and contains basic device information.
2021/04/01 · This value is a binary-coded decimal number. bDeviceClass. Specifies the class code of the device as assigned by the USB specification group.
This page requires JavaScript. · bDeviceClass. Mac Catalyst 13.0+macOS 10.0+.
A structure representing the standard USB device descriptor. This descriptor is documented in section 9.6.1 of the USB 3.0 specification.
2022/11/11 · The device class code, subclass code, and protocol code are determined by the bDeviceClass, bDeviceSubClass, and bDeviceProtocol fields of the ...
A high-speed capable device that has different device information for full-speed and high-speed must have a Device Qualifier Descriptor.
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bDeviceClass. public byte bDeviceClass(). Returns the USB-IF class code for the device. See LibUSB.CLASS_* constants. Returns: The USB-IF class code ...
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