04e7:2902 — WLIDS 21.5 Touchscreen
Elo TouchSystems
- Vendor ID
- 04e7
- Product ID
- 2902
- Combined
- 04e7:2902
- Decimal
- 1255:10498
What is this device?
This is the USB identifier for a WLIDS 21.5 Touchscreen manufactured by Elo TouchSystems. The vendor ID 04e7 is registered to Elo TouchSystems with the USB Implementers Forum, and 2902 is the product ID that Elo TouchSystems assigned to this particular model. When you run lsusb on Linux, this device appears as 04e7:2902 Elo TouchSystems WLIDS 21.5 Touchscreen.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 04e7:2902 Elo TouchSystems WLIDS 21.5 Touchscreen
You can filter directly with lsusb -d 04e7:2902, or get the full descriptor dump with lsusb -v -d 04e7:2902. Kernel messages from dmesg show the same pair as idVendor=04e7, idProduct=2902.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_04E7&PID_2902 USB\VID_04E7&PID_2902&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_04E7&PID_2902"
macOS
$ system_profiler SPUSBDataType
WLIDS 21.5 Touchscreen:
Product ID: 0x2902
Vendor ID: 0x04e7 (Elo TouchSystems)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:
04e7 Elo TouchSystems 2902 WLIDS 21.5 Touchscreen