0798:0640 — BC640
Optelec
- Vendor ID
- 0798
- Product ID
- 0640
- Combined
- 0798:0640
- Decimal
- 1944:1600
What is this device?
This is the USB identifier for a BC640 manufactured by Optelec. The vendor ID 0798 is registered to Optelec with the USB Implementers Forum, and 0640 is the product ID that Optelec assigned to this particular model. When you run lsusb on Linux, this device appears as 0798:0640 Optelec BC640.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 0798:0640 Optelec BC640
You can filter directly with lsusb -d 0798:0640, or get the full descriptor dump with lsusb -v -d 0798:0640. Kernel messages from dmesg show the same pair as idVendor=0798, idProduct=0640.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_0798&PID_0640 USB\VID_0798&PID_0640&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_0798&PID_0640"
macOS
$ system_profiler SPUSBDataType
BC640:
Product ID: 0x0640
Vendor ID: 0x0798 (Optelec)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:
0798 Optelec 0640 BC640