049f:001a — S4 100 Scanner
Compaq Computer Corp.
- Vendor ID
- 049f
- Product ID
- 001a
- Combined
- 049f:001a
- Decimal
- 1183:26
What is this device?
This is the USB identifier for a S4 100 Scanner manufactured by Compaq Computer Corp.. The vendor ID 049f is registered to Compaq Computer Corp. with the USB Implementers Forum, and 001a is the product ID that Compaq Computer Corp. assigned to this particular model. When you run lsusb on Linux, this device appears as 049f:001a Compaq Computer Corp. S4 100 Scanner.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 049f:001a Compaq Computer Corp. S4 100 Scanner
You can filter directly with lsusb -d 049f:001a, or get the full descriptor dump with lsusb -v -d 049f:001a. Kernel messages from dmesg show the same pair as idVendor=049f, idProduct=001a.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_049F&PID_001A USB\VID_049F&PID_001A&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_049F&PID_001A"
macOS
$ system_profiler SPUSBDataType
S4 100 Scanner:
Product ID: 0x001a
Vendor ID: 0x049f (Compaq Computer 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:
049f Compaq Computer Corp. 001a S4 100 Scanner