UCYCOM(4) Device Drivers Manual UCYCOM(4)

ucycom — Cypress microcontroller based USB serial adapter

ucycom* at uhidev?
ucom* at ucycom?

The ucycom driver supports usb(4) serial devices based on Cypress microcontrollers. The following adapters are supported:

Various low-cost USB-RS232 adapters
 
DeLorme Earthmate GPS receiver
 

The driver acts as a bridge between uhidev(4) and the ucom(4) driver which makes it behave like a tty(4).

tty(4), ucom(4), uhidev(4), usb(4)

The ucycom driver appeared in NetBSD and later in OpenBSD 4.0.

OpenBSD 7.8 October 8, 2018 UCYCOM(4)