.\" $NetBSD: umodem.4,v 1.6 2001/09/11 23:18:55 wiz Exp $
.\"
.\" Copyright (c) 1999 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Lennart Augustsson.
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.Dd April 26, 2017
.Dt UMODEM 4
.Os
.Sh NAME
.Nm umodem
.Nd USB Communication Device Class serial (CDC ACM) 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 umodem"
.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
umodem_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for USB modems and serial devices that
implement the Communication Device Class Abstract Control Model (CDC ACM).
It also provides device-side CDC ACM support.
Supported modems are basically standard serial line modems, but they are
accessed via USB instead.
They support a regular AT command set.
The commands can either be multiplexed with the data stream
or handled through separate pipes.
In the latter case the AT
commands have to be given on a device separate from the data device.
.Pp
The device is accessed through the
.Xr ucom 4
driver which makes it behave like a
.Xr tty 4 .
.Sh HARDWARE
Devices supported by the
.Nm
driver include:
.Pp
.Bl -bullet -compact
.It
3Com 5605
.It
Curitel PC5740 Wireless Modem
.It
Kyocera AH-K3001V Mobile Phone(WILLCOM)
.It
Kyocera WX320K Mobile Phone(WILLCOM)
.It
Metricom Ricochet GS USB wireless modem
.It
Sierra MC5720 Wireless Modem
.It
Yamaha Broadband Wireless Router RTW65b
.It
ELSA MicroLink 56k USB modem
.It
Sony Ericsson W810i phone
.It
Sonim XP5300 Force
.El
.Sh FILES
.Bl -tag -width "/dev/ttyU*.init" -compact
.It Pa /dev/ttyU*
for callin ports
.It Pa /dev/ttyU*.init
.It Pa /dev/ttyU*.lock
corresponding callin initial-state and lock-state devices
.Pp
.It Pa /dev/cuaU*
for callout ports
.It Pa /dev/cuaU*.init
.It Pa /dev/cuaU*.lock
corresponding callout initial-state and lock-state devices
.El
.Sh SEE ALSO
.Xr tty 4 ,
.Xr ucom 4 ,
.Xr usb 4
.Sh HISTORY
The
.Nm
driver
appeared in
.Nx 1.5 .
This manual page was adopted from
.Nx
by
.An Tom Rhodes Aq Mt trhodes@FreeBSD.org
in April 2002.
.Sh BUGS
Only modems with multiplexed commands and data are supported
at the moment.