04e2:0804 — XR22804 Hub
Exar Corp.
- Vendor ID
- 04e2
- Product ID
- 0804
- Combined
- 04e2:0804
- Decimal
- 1250:2052
What is this device?
This is the USB identifier for a XR22804 Hub manufactured by Exar Corp.. The vendor ID 04e2 is registered to Exar Corp. with the USB Implementers Forum, and 0804 is the product ID that Exar Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 04e2:0804 Exar Corp. XR22804 Hub.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 04e2:0804 Exar Corp. XR22804 Hub
You can filter directly with lsusb -d 04e2:0804, or get the full descriptor dump with lsusb -v -d 04e2:0804. Kernel messages from dmesg show the same pair as idVendor=04e2, idProduct=0804.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_04E2&PID_0804 USB\VID_04E2&PID_0804&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04E2&PID_0804"
macOS
$ system_profiler SPUSBDataType
XR22804 Hub:
Product ID: 0x0804
Vendor ID: 0x04e2 (Exar 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.
Raw usb.ids entry
The exact lines this page is generated from, in the upstream source file:
04e2 Exar Corp. 0804 XR22804 Hub