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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.

This field identifies the release of the USB Specification with which the device and its descriptors are compliant. 4, bDeviceClass, uint8_t, 1, Class. Class ...

USB-IF protocol code for the device, qualified by the bDeviceClass and bDeviceSubClass values. uint8_t, bMaxPacketSize0. Maximum packet size for endpoint 0.

2021/12/14 -The device class field of the device descriptor (bDeviceClass) must contain a value of zero, or the class (bDeviceClass), subclass ...

FTDI have defined our own device class, so FTDI devices return a 0 for the bDeviceClass (Vendor class). The class cannot be configured by the designer. Our ...

Subclass code (assigned by the USB-IF). These codes are qualified by the value of the bDeviceClass field. ... These codes are qualified by the values of the ...

2018/5/2 -The bDeviceClass I got from my phone and usb drive is the same(both ... Value of BDeviceClass is 00 represents the device is finally defined ...

2012/9/14 -bDeviceClass. Device class code. The USB working group assigns device class codes. If this member is zero (0), each of the USB device's ...

bDeviceClass". Service property for USB Device Descriptor field "bDeviceClass". The value type is String; the value is in 2-digit hexadecimal. For example ...

bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0. So it appears to be doing what the spec says, however its not using the ...