Entropy Key [UDEKEY01]
USB ID 20df:0001 · Simtec Electronics
| Vendor | Simtec Electronics |
|---|---|
| Vendor ID | 20df |
| Device ID | 0001 |
| Windows hardware ID | USB\VID_20DF&PID_0001 |
| Linux modalias | usb:v20DFp0001 |
| Linux driver | cdc_acm |
Frequently asked questions
Which device has USB ID 20df:0001?
USB ID 20df:0001 is “Entropy Key [UDEKEY01]” made by Simtec Electronics (vendor ID 20df, device ID 0001).
Which Linux driver supports Entropy Key [UDEKEY01]?
In Linux kernel 6.12 the device is bound to the driver cdc_acm (source under drivers/usb/class). The driver is normally loaded automatically when the device is detected.
How do I check whether Entropy Key [UDEKEY01] is in my computer?
On Linux, lsusb -d 20df:0001 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_20DF&PID_0001.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.