USB Bluetooth Device in DFU State
USB ID 0a12:ffff · Cambridge Silicon Radio, Ltd
| Vendor | Cambridge Silicon Radio, Ltd |
|---|---|
| Vendor ID | 0a12 |
| Device ID | ffff |
| Windows hardware ID | USB\VID_0A12&PID_FFFF |
| Linux modalias | usb:v0A12pFFFF |
| Linux driver | no driver with exact ID |
Frequently asked questions
Which device has USB ID 0a12:ffff?
USB ID 0a12:ffff is “USB Bluetooth Device in DFU State” made by Cambridge Silicon Radio, Ltd (vendor ID 0a12, device ID ffff).
Which Linux driver supports USB Bluetooth Device in DFU State?
Linux kernel 6.12 lists no driver for this exact ID. Most USB devices (keyboards, mice, storage, webcams, audio) still work through generic class drivers such as usbhid, usb-storage, uvcvideo or snd-usb-audio. Overview of device classes and their drivers
How do I check whether USB Bluetooth Device in DFU State is in my computer?
On Linux, lsusb -d 0a12:ffff shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_0A12&PID_FFFF.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.