04ca:3802 — MediaTek Bluetooth MT7921
Lite-On Technology Corp.
- Vendor ID
- 04ca
- Product ID
- 3802
- Combined
- 04ca:3802
- Decimal
- 1226:14338
What is this device?
This is the USB identifier for a MediaTek Bluetooth MT7921 manufactured by Lite-On Technology Corp.. The vendor ID 04ca is registered to Lite-On Technology Corp. with the USB Implementers Forum, and 3802 is the product ID that Lite-On Technology Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 04ca:3802 Lite-On Technology Corp. MediaTek Bluetooth MT7921.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 04ca:3802 Lite-On Technology Corp. MediaTek Bluetooth MT7921
You can filter directly with lsusb -d 04ca:3802, or get the full descriptor dump with lsusb -v -d 04ca:3802. Kernel messages from dmesg show the same pair as idVendor=04ca, idProduct=3802.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_04CA&PID_3802 USB\VID_04CA&PID_3802&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04CA&PID_3802"
macOS
$ system_profiler SPUSBDataType
MediaTek Bluetooth MT7921:
Product ID: 0x3802
Vendor ID: 0x04ca (Lite-On Technology Corp.)Driver help
Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
04ca Lite-On Technology Corp. 3802 MediaTek Bluetooth MT7921