10d1:0301 — CP42 - Communication Processor

This is the USB identifier for a CP42 - Communication Processor manufactured by Hottinger Baldwin Measurement. The vendor ID 10d1 is registered to Hottinger Baldwin Measurement with the USB Implementers Forum, and 0301 is the product ID that Hottinger Baldwin Measurement assigned to this particular model. When you run lsusb on Linux, this device appears as 10d1:0301 Hottinger Baldwin Measurement CP42 - Communication Processor.

Linux

$ lsusb
Bus 001 Device 004: ID 10d1:0301 Hottinger Baldwin Measurement CP42 - Communication Processor

You can filter directly with lsusb -d 10d1:0301, or get the full descriptor dump with lsusb -v -d 10d1:0301. Kernel messages from dmesg show the same pair as idVendor=10d1, idProduct=0301.

Windows

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

USB\VID_10D1&PID_0301
USB\VID_10D1&PID_0301&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_10D1&PID_0301"

macOS

$ system_profiler SPUSBDataType
    CP42 - Communication Processor:
      Product ID: 0x0301
      Vendor ID: 0x10d1  (Hottinger Baldwin Measurement)

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:

10d1  Hottinger Baldwin Measurement
	0301  CP42 - Communication Processor

• 10d1:0101 USB-Module for Spider8, CP32
• 10d1:0202 CP22 - Communication Processor

See all 3 devices from Hottinger Baldwin Measurement →