20df:0001 — Entropy Key [UDEKEY01]
Simtec Electronics
- Vendor ID
- 20df
- Product ID
- 0001
- Combined
- 20df:0001
- Decimal
- 8415:1
What is this device?
This is the USB identifier for a Entropy Key [UDEKEY01] manufactured by Simtec Electronics. The vendor ID 20df is registered to Simtec Electronics with the USB Implementers Forum, and 0001 is the product ID that Simtec Electronics assigned to this particular model. When you run lsusb on Linux, this device appears as 20df:0001 Simtec Electronics Entropy Key [UDEKEY01].
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 20df:0001 Simtec Electronics Entropy Key [UDEKEY01]
You can filter directly with lsusb -d 20df:0001, or get the full descriptor dump with lsusb -v -d 20df:0001. Kernel messages from dmesg show the same pair as idVendor=20df, idProduct=0001.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_20DF&PID_0001 USB\VID_20DF&PID_0001&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_20DF&PID_0001"
macOS
$ system_profiler SPUSBDataType
Entropy Key [UDEKEY01]:
Product ID: 0x0001
Vendor ID: 0x20df (Simtec Electronics)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:
20df Simtec Electronics 0001 Entropy Key [UDEKEY01]