20b1:f7d1 — XTAG2 - JTAG Adapter

This is the USB identifier for a XTAG2 - JTAG Adapter manufactured by XMOS Ltd. The vendor ID 20b1 is registered to XMOS Ltd with the USB Implementers Forum, and f7d1 is the product ID that XMOS Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 20b1:f7d1 XMOS Ltd XTAG2 - JTAG Adapter.

Linux

$ lsusb
Bus 001 Device 004: ID 20b1:f7d1 XMOS Ltd XTAG2 - JTAG Adapter

You can filter directly with lsusb -d 20b1:f7d1, or get the full descriptor dump with lsusb -v -d 20b1:f7d1. Kernel messages from dmesg show the same pair as idVendor=20b1, idProduct=f7d1.

Windows

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

USB\VID_20B1&PID_F7D1
USB\VID_20B1&PID_F7D1&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_20B1&PID_F7D1"

macOS

$ system_profiler SPUSBDataType
    XTAG2 - JTAG Adapter:
      Product ID: 0xf7d1
      Vendor ID: 0x20b1  (XMOS Ltd)

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:

20b1  XMOS Ltd
	f7d1  XTAG2 - JTAG Adapter

• 20b1:10ad XUSB Loader

See all 2 devices from XMOS Ltd →