Manual browser: radioctl(1)
|RADIOCTL(1)||General Commands Manual||RADIOCTL(1)|
NAMEradioctl — control radio tuners
|radioctl||[-f file] [-n] -a|
|radioctl||[-f file] [-n] name|
|radioctl||[-f file] [-n] -w name=value|
DESCRIPTIONThe radioctl command displays or sets various variables that affect the radio tuner behavior. If a variable is present on the command line, radioctl prints the current value of this variable for the specified device. By default, radioctl operates on the /dev/radio device.
The options are as follows:
- Print all device variables and their current values.
- -w name=value
- Attempt to set the specified variable name to value.
- -f file
- Specify an alternative radio tuner device.
- Suppress printing of the variable name.
Values may be specified in either absolute or relative forms. The relative form is indicated by a prefix of ‘
+’ or ‘
-’ to denote an increase or decrease, respectively.
The exact set of controls that can be manipulated depends on the tuner. The general format (in both getting and setting a value) is
name = value
The name indicates what part of the tuner the control affects.
Write only controls:
Only for cards that allow hardware search. Can be ‘
up’ or ‘
- Float value from 87.5 to 108.0.
- Integer value from 0 to 255.
Mutes the card (volume is not affected), ‘
on’ or ‘
Forces card output to mono, ‘
on’ or ‘
off’. Only for cards that allow forced mono.
- Reference frequency. Can be 25 kHz, 50 kHz and 100 kHz. Not all cards allow to change the reference frequency.
- Station locking sensitivity. Can be 5 mkV, 10 mkV, 30 mkV and 150 mkV. Not all cards allow to change the station locking sensitivity.
All the remaining controls (signal, stereo and card capabilities) are read-only and can be viewed using option -a.
ENVIRONMENTThe following environment variable affects the execution of radioctl:
- The radio tuner device to use.
- radio tuner device
volume=255 frequency=106.30MHz mute=off reference=50kHz signal=on stereo=on card capabilities: manageable mono/stereo
HISTORYradioctl command first appeared in OpenBSD 3.0 and NetBSD 1.6.
|September 16, 2001||NetBSD 7.0|