MirOS Manual: sf2r(4)

SF2R(4)                    BSD Programmer's Manual                     SF2R(4)

NAME

     sf2r - SoundForte RadioLink SF16-FMR2 FM radio device driver

SYNOPSIS

     sf2r0   at isa? port 0x384 flags 0x00
     radio* at sf2r?

DESCRIPTION

     The sf2r driver provides support for the SF16-FMR2 FM radio tuners.

     The SF16-FMR2 is a stereo FM tuner that can 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 card is based on the TEA5757 chip; see radio(4) for details.

     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.

     The flags control the driver behavior. For example, with flags 0x01 the
     driver will assume that there is a TEA5759 chip.

     MediaForte made two variants of the SF16-FMR2 cards, the first one has an
     internal amplifier (PT2254A chip) of the output sound, the second one
     does not have such an amplifier. The current driver supports both vari-
     ants.

SEE ALSO

     intro(4), isa(4), radio(4), radio(9)

HISTORY

     The sf2r device driver appeared in OpenBSD 3.0.

AUTHORS

     The sf2r driver was written by Vladimir Popov <jumbo@narod.ru> and
     Maxim Tsyplakov <tm@oganer.net>. The man page was written by
     Vladimir Popov <jumbo@narod.ru>.

MirOS BSD #10-current          October 8, 2001                               1

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