0547:2131 — AN2131 EZUSB Microcontroller
Anchor Chips, Inc.
- Vendor ID
- 0547
- Product ID
- 2131
- Combined
- 0547:2131
- Decimal
- 1351:8497
What is this device?
This is the USB identifier for a AN2131 EZUSB Microcontroller manufactured by Anchor Chips, Inc.. The vendor ID 0547 is registered to Anchor Chips, Inc. with the USB Implementers Forum, and 2131 is the product ID that Anchor Chips, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 0547:2131 Anchor Chips, Inc. AN2131 EZUSB Microcontroller.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0547:2131 Anchor Chips, Inc. AN2131 EZUSB Microcontroller
You can filter directly with lsusb -d 0547:2131, or get the full descriptor dump with lsusb -v -d 0547:2131. Kernel messages from dmesg show the same pair as idVendor=0547, idProduct=2131.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0547&PID_2131 USB\VID_0547&PID_2131&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0547&PID_2131"
macOS
$ system_profiler SPUSBDataType
AN2131 EZUSB Microcontroller:
Product ID: 0x2131
Vendor ID: 0x0547 (Anchor Chips, Inc.)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:
0547 Anchor Chips, Inc. 2131 AN2131 EZUSB Microcontroller