1.\" $NetBSD: az.4,v 1.7 2018/08/31 19:36:28 sevan Exp $ 2.\" $RuOBSD: az.4,v 1.3 2001/10/26 05:38:43 form Exp $ 3.\" $OpenBSD: az.4,v 1.1 2001/12/05 10:58:54 mickey Exp $ 4.\" 5.\" Copyright (c) 2001 Vladimir Popov 6.\" All rights reserved. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 24.\" ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27.\" 28.Dd August 31, 2018 29.Dt AZ 4 30.Os 31.Sh NAME 32.Nm az 33.Nd Aztech/PackardBell radio card device driver 34.Sh SYNOPSIS 35.Cd "az0 at isa? port 0x350" 36.Cd "az1 at isa? port 0x358" 37.Cd "radio* at az?" 38.Sh DESCRIPTION 39The 40.Nm 41driver provides support for the Aztech/PackardBell radio cards. 42.Pp 43The Aztech/PackardBell cards are stereo FM tuners that allow tuning 44in the 87.5-108.0 MHz range. 45They are capable of reporting signal status (tuned/not tuned, stereo/mono 46signal) and forcing audio output to mono. 47.Pp 48The Aztech cards use only one I/O port. 49The I/O port is set by the driver to the value specified in the configuration 50file. 51The I/O port must be one of 520x350 and 0x358. 53.Sh SEE ALSO 54.Xr isa 4 , 55.Xr radio 4 56.Sh HISTORY 57The 58.Nm 59device driver appeared in 60.Ox 3.0 61and 62.Nx 1.6 . 63.Sh AUTHORS 64.An -nosplit 65The 66.Nm 67driver was written by 68.An "Vladimir Popov" 69and 70.An "Maxim Tsyplakov" . 71The man page was written by 72.An "Vladimir Popov" . 73.Sh BUGS 74It is impossible to determine to which frequency the card is tuned. 75Thus, the driver will report an internally stored value even if it is not 76correct (changed by some program that uses direct port access). 77