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Manual Pages  — UCHCOM

NAME

uchcom – WinChipHead CH341/CH340 serial adapter driver

CONTENTS

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file: device usb device ucom device uchcom

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): 

uchcom_load="YES"

DESCRIPTION

The uchcom driver provides support for the WinChipHead CH341/CH340 USB-to-RS-232 Bridge chip.

The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

HARDWARE

The uchcom driver supports the following adapters:

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

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

HISTORY

The uchcom driver first appeared in NetBSD The first FreeBSD release to include it was FreeBSD 8.0 .

BUGS

Actually, this chip seems unable to drive other than 8 data bits and 1 stop bit line.
UCHCOM (4) April 26, 2017
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