MediaTek Bluetooth MT7921
USB ID 04ca:3802 · Lite-On Technology Corp.
| Vendor | Lite-On Technology Corp. |
|---|---|
| Vendor ID | 04ca |
| Device ID | 3802 |
| Windows hardware ID | USB\VID_04CA&PID_3802 |
| Linux modalias | usb:v04CAp3802 |
| Linux driver | no driver with exact ID |
Frequently asked questions
Which device has USB ID 04ca:3802?
USB ID 04ca:3802 is “MediaTek Bluetooth MT7921” made by Lite-On Technology Corp. (vendor ID 04ca, device ID 3802).
Which Linux driver supports MediaTek Bluetooth MT7921?
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 MediaTek Bluetooth MT7921 is in my computer?
On Linux, lsusb -d 04ca:3802 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_04CA&PID_3802.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.
Nearby entries
- 3005 – Atheros Bluetooth
- 300b – Atheros AR3012 Bluetooth
- 300d – Atheros AR3012 Bluetooth
- 300f – Atheros AR3012 Bluetooth
- 3014 – Qualcomm Atheros Bluetooth
- 3015 – Qualcomm Atheros QCA9377 Bluetooth
- 7022 – HP HD Webcam
- 7025 – HP HD Webcam
- 7046 – TOSHIBA Web Camera - HD
- 7054 – HP HD Webcam
- 705a – HD Webcam (960×540)
- 9304 – Hub