20b7:9db1 — Glasgow Debug Tool
Qi Hardware
- Vendor ID
- 20b7
- Product ID
- 9db1
- Combined
- 20b7:9db1
- Decimal
- 8375:40369
What is this device?
This is the USB identifier for a Glasgow Debug Tool manufactured by Qi Hardware. The vendor ID 20b7 is registered to Qi Hardware with the USB Implementers Forum, and 9db1 is the product ID that Qi Hardware assigned to this particular model. When you run lsusb on Linux, this device appears as 20b7:9db1 Qi Hardware Glasgow Debug Tool.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 20b7:9db1 Qi Hardware Glasgow Debug Tool
You can filter directly with lsusb -d 20b7:9db1, or get the full descriptor dump with lsusb -v -d 20b7:9db1. Kernel messages from dmesg show the same pair as idVendor=20b7, idProduct=9db1.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_20B7&PID_9DB1 USB\VID_20B7&PID_9DB1&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_20B7&PID_9DB1"
macOS
$ system_profiler SPUSBDataType
Glasgow Debug Tool:
Product ID: 0x9db1
Vendor ID: 0x20b7 (Qi Hardware)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:
20b7 Qi Hardware 9db1 Glasgow Debug Tool