1a81:2205 — Laser Mouse

This is the USB identifier for a Laser Mouse manufactured by Holtek Semiconductor, Inc.. The vendor ID 1a81 is registered to Holtek Semiconductor, Inc. with the USB Implementers Forum, and 2205 is the product ID that Holtek Semiconductor, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 1a81:2205 Holtek Semiconductor, Inc. Laser Mouse.

Linux

$ lsusb
Bus 001 Device 004: ID 1a81:2205 Holtek Semiconductor, Inc. Laser Mouse

You can filter directly with lsusb -d 1a81:2205, or get the full descriptor dump with lsusb -v -d 1a81:2205. Kernel messages from dmesg show the same pair as idVendor=1a81, idProduct=2205.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_1A81&PID_2205
USB\VID_1A81&PID_2205&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1A81&PID_2205"

macOS

$ system_profiler SPUSBDataType
    Laser Mouse:
      Product ID: 0x2205
      Vendor ID: 0x1a81  (Holtek Semiconductor, Inc.)

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.

The exact lines this page is generated from, in the upstream source file:

1a81  Holtek Semiconductor, Inc.
	2205  Laser Mouse

• 1a81:1701 Wireless dongle
• 1a81:2004 Keyboard
• 1a81:2203 Laser Gaming mouse
• 1a81:2204 Optical Mouse
• 1a81:4001 Keyboard

See all 7 devices from Holtek Semiconductor, Inc. →