NAME
ucycom —
device driver for Cypress CY7C63743 and
CY7C64013 USB to RS232 bridges
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device usb
device ucom
device ucycomAlternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
ucycom_load="YES"
DESCRIPTION
Theucycom driver provides support for the Cypress
CY7C63743 and CY7C64013 bridge chips. These chips were designed to provide a
low-cost transition path to USB for existing RS232 devices, and have fairly
limited capabilities.
The ucycom driver behaves like a
tty(4).
HARDWARE
The ucycom driver currently supports the
following devices which incorporate Cypress USB to RS232 bridge chips:
- DeLorme Earthmate USB GPS receiver
FILES
- /dev/ttyU*
- for callin ports
- /dev/ttyU*.init
- /dev/ttyU*.lock
- corresponding callin initial-state and lock-state devices
- /dev/cuaU*
- for callout ports
- /dev/cuaU*.init
- /dev/cuaU*.lock
- corresponding callout initial-state and lock-state devices
SEE ALSO
HISTORY
The ucycom driver first appeared in
FreeBSD 5.3.
AUTHORS
The ucycom driver and this manual page
were written by Dag-Erling Smørgrav
<des@FreeBSD.org>.