04b4:bca1 — Barcode Reader (Cypress Semiconductor Corp.)

What is this device?

This is the USB identifier for a Barcode Reader manufactured by Cypress Semiconductor Corp.. The vendor ID 04b4 is registered to Cypress Semiconductor Corp. with the USB Implementers Forum, and bca1 is the product ID that Cypress Semiconductor Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 04b4:bca1 Cypress Semiconductor Corp. Barcode Reader.

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 04b4:bca1 Cypress Semiconductor Corp. Barcode Reader

You can filter directly with lsusb -d 04b4:bca1, or get the full descriptor dump with lsusb -v -d 04b4:bca1. Kernel messages from dmesg show the same pair as idVendor=04b4, idProduct=bca1.

Windows

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

USB\VID_04B4&PID_BCA1
USB\VID_04B4&PID_BCA1&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04B4&PID_BCA1"

macOS

$ system_profiler SPUSBDataType
    Barcode Reader:
      Product ID: 0xbca1
      Vendor ID: 0x04b4  (Cypress Semiconductor Corp.)

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. Cypress Semiconductor Corp. official support →

Raw usb.ids entry

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

04b4  Cypress Semiconductor Corp.
	bca1  Barcode Reader

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