0f44:ff11 — Liberty (firmware not loaded)
Polhemus
- Vendor ID
- 0f44
- Product ID
- ff11
- Combined
- 0f44:ff11
- Decimal
- 3908:65297
What is this device?
This is the USB identifier for a Liberty (firmware not loaded) manufactured by Polhemus. The vendor ID 0f44 is registered to Polhemus with the USB Implementers Forum, and ff11 is the product ID that Polhemus assigned to this particular model. When you run lsusb on Linux, this device appears as 0f44:ff11 Polhemus Liberty (firmware not loaded).
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0f44:ff11 Polhemus Liberty (firmware not loaded)
You can filter directly with lsusb -d 0f44:ff11, or get the full descriptor dump with lsusb -v -d 0f44:ff11. Kernel messages from dmesg show the same pair as idVendor=0f44, idProduct=ff11.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0F44&PID_FF11 USB\VID_0F44&PID_FF11&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0F44&PID_FF11"
macOS
$ system_profiler SPUSBDataType
Liberty (firmware not loaded):
Product ID: 0xff11
Vendor ID: 0x0f44 (Polhemus)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:
0f44 Polhemus ff11 Liberty (firmware not loaded)