090a:1100 — Comotron C3310 MP3 player

This is the USB identifier for a Comotron C3310 MP3 player manufactured by Trumpion Microelectronics, Inc.. The vendor ID 090a is registered to Trumpion Microelectronics, Inc. with the USB Implementers Forum, and 1100 is the product ID that Trumpion Microelectronics, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 090a:1100 Trumpion Microelectronics, Inc. Comotron C3310 MP3 player.

Linux

$ lsusb
Bus 001 Device 004: ID 090a:1100 Trumpion Microelectronics, Inc. Comotron C3310 MP3 player

You can filter directly with lsusb -d 090a:1100, or get the full descriptor dump with lsusb -v -d 090a:1100. Kernel messages from dmesg show the same pair as idVendor=090a, idProduct=1100.

Windows

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

USB\VID_090A&PID_1100
USB\VID_090A&PID_1100&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_090A&PID_1100"

macOS

$ system_profiler SPUSBDataType
    Comotron C3310 MP3 player:
      Product ID: 0x1100
      Vendor ID: 0x090a  (Trumpion Microelectronics, 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:

090a  Trumpion Microelectronics, Inc.
	1100  Comotron C3310 MP3 player

• 090a:1001 T33520 Flash Card Controller
• 090a:1200 MP3 player
• 090a:1540 Digitex Container Flash Disk

See all 4 devices from Trumpion Microelectronics, Inc. →