1.\"	$RuOBSD: az.4,v 1.3 2001/10/26 05:38:43 form Exp $
2.\"	$OpenBSD: az.4,v 1.7 2003/12/14 19:44:52 jmc Exp $
3.\"
4.\" Copyright (c) 2001 Vladimir Popov
5.\" All rights reserved.
6.\"
7.\" Redistribution and use in source and binary forms, with or without
8.\" modification, are permitted provided that the following conditions
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10.\" 1. Redistributions of source code must retain the above copyright
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27.Dd October 8, 2001
28.Dt AZ 4
29.Os
30.Sh NAME
31.Nm az
32.Nd Aztech/PackardBell radio card device driver
33.Sh SYNOPSIS
34.Cd "az0   at isa? port 0x350"
35.Cd "az1   at isa? port 0x358"
36.Cd "radio* at az?"
37.Sh DESCRIPTION
38The
39.Nm
40driver provides support for the Aztech/PackardBell radio cards.
41.Pp
42The Aztech/PackardBell cards are stereo FM tuners that can tune
43in the 87.5-108.0 MHz range.
44They are capable of reporting signal status
45(tuned/not tuned, stereo/mono signal) and forcing audio output to mono.
46.Pp
47The card is based on the LM7001 chip; see
48.Xr radio 4
49for details.
50.Pp
51The Aztech cards use only one I/O port.
52The I/O port is set by the driver to the value specified in the configuration
53file.
54The I/O port must be one of
550x350 and 0x358.
56.Sh SEE ALSO
57.Xr intro 4 ,
58.Xr isa 4 ,
59.Xr radio 4 ,
60.Xr radio 9
61.Sh HISTORY
62The
63.Nm
64device driver appeared in
65.Ox 3.0 .
66.Sh AUTHORS
67The
68.Nm
69driver was written by
70.An Vladimir Popov Aq jumbo@narod.ru
71and
72.An Maxim Tsyplakov Aq tm@oganer.net .
73The man page was written by
74.An Vladimir Popov Aq jumbo@narod.ru .
75.Sh BUGS
76It is impossible to determine which frequency the card is tuned to.
77Thus, the driver will report an internally stored value even if it is not
78correct (changed by some program that uses direct port access).
79