72 lines
2.6 KiB
Groff
72 lines
2.6 KiB
Groff
.\" $NetBSD: az.4,v 1.4 2002/01/02 02:08:02 augustss Exp $
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.\" $RuOBSD: az.4,v 1.3 2001/10/26 05:38:43 form Exp $
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.\" $OpenBSD: az.4,v 1.1 2001/12/05 10:58:54 mickey Exp $
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.\"
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.\" Copyright (c) 2001 Vladimir Popov
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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.\" ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd October 8, 2001
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.Dt AZ 4
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.Os
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.Sh NAME
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.Nm az
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.Nd Aztech/PackardBell radio card device driver
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.Sh SYNOPSIS
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.Cd "az0 at isa? port 0x350"
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.Cd "az1 at isa? port 0x358"
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.Cd "radio* at az?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the Aztech/PackardBell radio cards.
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.Pp
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The Aztech/PackardBell cards are stereo FM tuners that allow to tune
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in the 87.5-108.0 MHz range.
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It is capable to report signal status (tuned/not tuned, stereo/mono signal)
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and force audio output to mono.
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.Pp
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The Aztech cards use only one I/O port.
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The I/O port is set by the driver to the value specified in the configuration
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file.
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The I/O port must be one of
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0x350 and 0x358.
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.Sh SEE ALSO
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.Xr isa 4 ,
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.Xr radio 4
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.Sh HISTORY
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The
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.Nm
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device driver appeared in
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.Ox 3.0
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and
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.Nx 1.6 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by Vladimir Popov and Maxim Tsyplakov.
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The man page was written by Vladimir Popov.
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.Sh BUGS
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It is impossible to determine which frequency the card is tuned to.
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Thus, the driver will report an internally stored value even if it is not
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correct (changed by some program that uses direct port access).
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