04d8:fbb2 — GCUSB-nStep stepper motor controller

Microchip Technology, Inc.

Vendor ID: 04d8
Product ID: fbb2
Combined: 04d8:fbb2
Decimal: 1240:64434

What is this device?

This is the USB identifier for a GCUSB-nStep stepper motor controller manufactured by Microchip Technology, Inc.. The vendor ID 04d8 is registered to Microchip Technology, Inc. with the USB Implementers Forum, and fbb2 is the product ID that Microchip Technology, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 04d8:fbb2 Microchip Technology, Inc. GCUSB-nStep stepper motor controller.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 04d8:fbb2 Microchip Technology, Inc. GCUSB-nStep stepper motor controller

You can filter directly with lsusb -d 04d8:fbb2, or get the full descriptor dump with lsusb -v -d 04d8:fbb2. Kernel messages from dmesg show the same pair as idVendor=04d8, idProduct=fbb2.

Windows

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

USB\VID_04D8&PID_FBB2
USB\VID_04D8&PID_FBB2&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04D8&PID_FBB2"

macOS

$ system_profiler SPUSBDataType
    GCUSB-nStep stepper motor controller:
      Product ID: 0xfbb2
      Vendor ID: 0x04d8  (Microchip Technology, 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:

04d8  Microchip Technology, Inc.
	fbb2  GCUSB-nStep stepper motor controller

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