NAME    [Toc]    [Back]

     rt - AIMS Lab Radiotrack FM radio device driver

SYNOPSIS    [Toc]    [Back]

     rt0   at isa? port 0x30c
     rt1   at isa? port 0x20c
     rt*   at isapnp?
     radio* at rt?

DESCRIPTION    [Toc]    [Back]

     The rt driver provides support for the AIMS  Lab  Radiotrack
FM radio
     tuners  and  compatible  - RadioReveal RA300 FM radio tuners
and tuners at
     SoundForte RadioX SF16-FMI (Creative ViBRA16C PnP).

     The Radiotrack is a stereo FM tuner that  can  tune  in  the
range 87.5 -
     108.0  MHz,  report  signal status on the current frequency,
and force audio
     output to mono.

     The card is based on the LM7000 chip; see radio(4)  for  details.

     The  Radiotrack  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 either
 0x20c or 0x30c.

SEE ALSO    [Toc]    [Back]

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

HISTORY    [Toc]    [Back]

     The rt device driver appeared in OpenBSD 3.0.

AUTHORS    [Toc]    [Back]

     The rt driver was written by Vladimir Popov <[email protected]>
and
     Maxim Tsyplakov <[email protected]>.  The man page  was  written
by
     Vladimir Popov <[email protected]>.

BUGS    [Toc]    [Back]

     Support  for  the  SF16-FMI cards is rather ugly, the driver
can not determine
 signal state and force audio output to mono.

     It is impossible to determine which frequency  the  card  is
tuned to.
     Thus, the driver will report an internally stored value even
if it is not
     correct (e.g. tuning was done through  the  direct  I/O  access).

OpenBSD      3.6                          October     8,     2001