20b7:c25b — C2 Dongle

This is the USB identifier for a C2 Dongle manufactured by Qi Hardware. The vendor ID 20b7 is registered to Qi Hardware with the USB Implementers Forum, and c25b is the product ID that Qi Hardware assigned to this particular model. When you run lsusb on Linux, this device appears as 20b7:c25b Qi Hardware C2 Dongle.

Linux

$ lsusb
Bus 001 Device 004: ID 20b7:c25b Qi Hardware C2 Dongle

You can filter directly with lsusb -d 20b7:c25b, or get the full descriptor dump with lsusb -v -d 20b7:c25b. Kernel messages from dmesg show the same pair as idVendor=20b7, idProduct=c25b.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_20B7&PID_C25B
USB\VID_20B7&PID_C25B&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_20B7&PID_C25B"

macOS

$ system_profiler SPUSBDataType
    C2 Dongle:
      Product ID: 0xc25b
      Vendor ID: 0x20b7  (Qi Hardware)

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.

The exact lines this page is generated from, in the upstream source file:

20b7  Qi Hardware
	c25b  C2 Dongle

• 20b7:1540 ben-wpan, AT86RF230-based
• 20b7:1db5 IDBG in DFU mode
• 20b7:1db6 IDBG in normal mode
• 20b7:9db1 Glasgow Debug Tool
• 20b7:cb72 ben-wpan, cntr

See all 7 devices from Qi Hardware →