1 .\" $NetBSD: radioctl.1,v 1.2 2002/01/01 22:07:36 augustss Exp $
2 .\" $OpenBSD: radioctl.1,v 1.4 2001/12/06 10:14:32 mickey Exp $
4 .\" Copyright (c) 2001 Vladimir Popov
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27 .Dd September 16, 2001
32 .Nd control radio tuners
50 command displays or sets various variables that affect the radio tuner
51 behavior. If a variable is present on the command line,
53 prints the current value of this variable for the specified device.
60 The options are as follows:
63 Print all device variables and their current values.
64 .It Fl w Ar name=value
65 Attempt to set the specified variable
70 Specify an alternative radio tuner device.
72 Suppress printing of the variable name.
75 Values may be specified in either absolute or relative forms.
76 The relative form is indicated by a prefix of
80 to denote an increase or decrease, respectively.
82 The exact set of controls that can be manipulated depends on
84 The general format (in both getting and setting a value) is
90 indicates what part of the tuner the control affects.
93 .Bl -tag -width search
95 Only for cards that allow hardware search. Can be
102 .Bl -tag -width volume
104 Float value from 87.5 to 108.0.
106 Integer value from 0 to 255.
108 Mutes the card (volume is not affected),
113 Forces card output to mono,
117 Only for cards that allow forced mono.
119 Reference frequency. Can be 25 kHz, 50 kHz and 100 kHz. Not all cards allow
120 to change the reference frequency.
122 Station locking sensitivity. Can be 5 mkV, 10 mkV, 30 mkV and 150 mkV. Not all
123 cards allow to change the station locking sensitivity.
126 All the remaining controls (signal, stereo and card capabilities) are read-only
127 and can be viewed using option
130 The following environment variable affects the execution of
132 .Bl -tag -width RADIODEVICE
134 The radio tuner device to use.
137 .Bl -tag -width /dev/radio
155 manageable mono/stereo
161 command first appeared in