1.\" $NetBSD: umodem.4,v 1.6 2001/09/11 23:18:55 wiz Exp $ 2.\" 3.\" Copyright (c) 1999 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Lennart Augustsson. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgment: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.\" $FreeBSD: src/share/man/man4/umodem.4,v 1.2 2002/05/30 12:59:52 ru Exp $ 38.\" 39.Dd November 20, 2006 40.Dt UMODEM 4 41.Os 42.Sh NAME 43.Nm umodem 44.Nd USB modem support 45.Sh SYNOPSIS 46.Cd "device umodem" 47.Cd "device ucom" 48.Sh DESCRIPTION 49The 50.Nm 51driver provides support for USB modems in the Communication 52Device Class using the Abstract Control Model. 53These modems are basically standard serial line modems, but they are 54accessed via USB instead. 55They support a regular AT command set. 56The commands can either be multiplexed with the data stream 57or handled through separate pipes. 58In the latter case the AT 59commands have to be given on a device separate from the data device. 60.Pp 61The device is accessed through the 62.Xr ucom 4 63driver which makes it behave like a 64.Xr tty 4 . 65.Sh SEE ALSO 66.Xr tty 4 , 67.Xr ucom 4 , 68.Xr usb 4 69.Sh HISTORY 70The 71.Nm 72driver 73appeared in 74.Nx 1.5 . 75This manual page was adopted from 76.Nx 77by 78.An Tom Rhodes Aq Mt trhodes@FreeBSD.org 79in April 2002. 80.Sh BUGS 81Only modems with multiplexed commands and data are supported 82at the moment. 83