1c40:0534 — i2c-tiny-usb interface
EZPrototypes
- Vendor ID
- 1c40
- Product ID
- 0534
- Combined
- 1c40:0534
- Decimal
- 7232:1332
What is this device?
This is the USB identifier for a i2c-tiny-usb interface manufactured by EZPrototypes. The vendor ID 1c40 is registered to EZPrototypes with the USB Implementers Forum, and 0534 is the product ID that EZPrototypes assigned to this particular model. When you run lsusb on Linux, this device appears as 1c40:0534 EZPrototypes i2c-tiny-usb interface.
How to identify it on your system
Linux
$ lsusb Bus 001 Device 004: ID 1c40:0534 EZPrototypes i2c-tiny-usb interface
You can filter directly with lsusb -d 1c40:0534, or get the full descriptor dump with lsusb -v -d 1c40:0534. Kernel messages from dmesg show the same pair as idVendor=1c40, idProduct=0534.
Windows
In Device Manager, open the device, go to Details → Hardware Ids. This device reports:
USB\VID_1C40&PID_0534 USB\VID_1C40&PID_0534&REV_0100
From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1C40&PID_0534"
macOS
$ system_profiler SPUSBDataType
i2c-tiny-usb interface:
Product ID: 0x0534
Vendor ID: 0x1c40 (EZPrototypes)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:
1c40 EZPrototypes 0534 i2c-tiny-usb interface