2bd6:4201 — RS-485 Controller and Interface [Cypress Semiconductor]

This is the USB identifier for a RS-485 Controller and Interface [Cypress Semiconductor] manufactured by Coroware, Inc.. The vendor ID 2bd6 is registered to Coroware, Inc. with the USB Implementers Forum, and 4201 is the product ID that Coroware, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 2bd6:4201 Coroware, Inc. RS-485 Controller and Interface [Cypress Semiconductor].

Linux

$ lsusb
Bus 001 Device 004: ID 2bd6:4201 Coroware, Inc. RS-485 Controller and Interface [Cypress Semiconductor]

You can filter directly with lsusb -d 2bd6:4201, or get the full descriptor dump with lsusb -v -d 2bd6:4201. Kernel messages from dmesg show the same pair as idVendor=2bd6, idProduct=4201.

Windows

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

USB\VID_2BD6&PID_4201
USB\VID_2BD6&PID_4201&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_2BD6&PID_4201"

macOS

$ system_profiler SPUSBDataType
    RS-485 Controller and Interface [Cypress Semiconductor]:
      Product ID: 0x4201
      Vendor ID: 0x2bd6  (Coroware, 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:

2bd6  Coroware, Inc.
	4201  RS-485 Controller and Interface [Cypress Semiconductor]

See all 1 devices from Coroware, Inc. →