99fc589956
PR: usb/160301 Submitted by: Garrett Cooper <gcooper@ixsystems.com> Reviewed by: hselasky Approved by: hselasky, rwatson (mentor) MFC after: 3 Days
89 lines
2.6 KiB
Groff
89 lines
2.6 KiB
Groff
.\" $NetBSD: uchcom.4,v 1.2 2008/04/30 13:10:54 martin Exp $
|
|
.\"
|
|
.\" Copyright (c) 2007 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Takuya SHIOZAKI (tshiozak@netbsd.org).
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
.\" POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd November 20, 2011
|
|
.Dt UCHCOM 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm uchcom
|
|
.Nd WinChipHead CH341/CH340 serial adapter driver
|
|
.Sh SYNOPSIS
|
|
To compile this driver into the kernel,
|
|
place the following lines in your
|
|
kernel configuration file:
|
|
.Bd -ragged -offset indent
|
|
.Cd "device usb"
|
|
.Cd "device ucom"
|
|
.Cd "device uchcom"
|
|
.Ed
|
|
.Pp
|
|
Alternatively, to load the driver as a
|
|
module at boot time, place the following line in
|
|
.Xr loader.conf 5 :
|
|
.Bd -literal -offset indent
|
|
uchcom_load="YES"
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for the WinChipHead CH341/CH340 USB-to-RS-232
|
|
Bridge chip.
|
|
.Pp
|
|
The device is accessed through the
|
|
.Xr ucom 4
|
|
driver which makes it behave like a
|
|
.Xr tty 4 .
|
|
.Sh HARDWARE
|
|
The
|
|
.Nm
|
|
driver supports the following adapters:
|
|
.Pp
|
|
.Bl -bullet -compact
|
|
.It
|
|
HL USB-RS232
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr tty 4 ,
|
|
.Xr ucom 4 ,
|
|
.Xr usb 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver first appeared in
|
|
.Nx .
|
|
The first
|
|
.Fx
|
|
release to include it was
|
|
.Fx 8.0 .
|
|
.Sh BUGS
|
|
Actually, this chip seems unable to drive other than 8 data bits and
|
|
1 stop bit line.
|