sf2r(4) [netbsd man page]
SF2R(4) BSD Kernel Interfaces Manual SF2R(4) NAME
sf2r -- SoundForte RadioLink SF16-FMR2 FM radio device driver SYNOPSIS
option RADIO_TEA5759 sf2r0 at isa? port 0x384 radio* at sf2r0 DESCRIPTION
The sf2r driver provides support for the SF16-FMR2 FM radio tuners. The SF16-FMR2 is a stereo FM tuner that allows to tune in the range 87.5 - 108.0 MHz, report signal status on the current frequency, force audio output to mono, perform hardware signal search, and has an internal AFC. The SF16-FMR2 cards take only one I/O port. The I/O port is set by the driver to the value specified in the configuration file and must be 0x384. Philips Semiconductors released two almost identical chips TEA5757 and TEA5759. The TEA5757 is used in FM-standards in which the local oscillator frequency is above the radio frequency (e.g. European and American standards). The TEA5759 is the version in which the oscillator frequency is below the radio frequency (e.g. Japanese standards). The option RADIO_TEA5759 changes the algorithm of frequency calculation for the TEA5757 based cards to conform with the Japanese standards. SEE ALSO
isa(4), radio(4) HISTORY
The sf2r device driver appeared in OpenBSD 3.0 and NetBSD 1.6. AUTHORS
The sf2r driver was written by Vladimir Popov and Maxim Tsyplakov. The man page was written by Vladimir Popov. BUGS
MediaForte made two variants of the SF16-FMR2 cards, the first one has an internal amplifier of the output sound, the second one does not have such an amplifier. The current driver supports only the second variant. BSD
October 8, 2001 BSD
Check Out this Related Man Page
FM(1) General Commands Manual FM(1) NAME
fm - control frequency, volume, mute/unmute of FM radio card SYNOPSIS
fm [ -h ] [ -o ] [ -q ] [ -d device ] [ -t tuner ] [ -T none | forever | time ] on | off | + | - | freq [ volume ] DESCRIPTION
fm is a program to control the frequency, volume, and mute/unmute state of an FM radio card, using the video4linux interface introduced in 2.1.x series Linux kernels. OPTIONS -h Print a usage message to standard output, and exit. -o Ignore frequency range limits of card. Use if you suspect that the card supports a wider frequency range than its driver believes. -q Quiet mode. Keeps information on station and volume from being printed on standard output. -d device Sets device as the device to tune. The default is /dev/radio0. -t tuner Sets tuner as the tuner on the selected device to adjust. The default is tuner 0. Most radio devices have only a single tuner. -T none | forever | time After tuning, sleep for the time specified or forever. Time is specified in seconds by default. A suffix of m indicates minutes, h indicates hours, or d indicates days. The -T option is useful with radio card drivers that only maintain the tuner settings while the tuner's file descriptor remains open. Try using this option if running fm ordinarily produces only a single "pop" from your speakers. freq Frequency to tune the radio to, in MHz. For instance, 88.9 specifies a frequency of 88.9 MHz. AM tuner values are also specified in MHz; for instance, 530 kHz would be specified as .530. on Turn the radio on (unmute). off Turn the radio off (mute). volume Specify the desired volume, in percent. Not all radio devices support volume control. + Increase the current volume. - Decrease the current volume. CONFIGURATION
fm reads $HOME/.fmrc, if it exists, to obtain default settings. Each line may take one of the following forms: VOL percent Specifies default volume (default: 12.5%). INCR percent Volume increment used for + and - options (default: 10%). TIME Default sleep time (default: none). All other lines are ignored. SEE ALSO
Additional documentation: /usr/share/doc/fmtools/README The fmtools homepage: http://benpfaff.org/fmtools AUTHORS
Russell Kroll <rkroll@exploits.org>, now maintained by Ben Pfaff <blp@cs.stanford.edu>. Sleep time feature contributed by Dave Ulrick <d- ulrick@insightbb.com>. This manpage written by Ben Pfaff. fm 1.0.2 FM(1)