GTP(4)                    OpenBSD Programmer's Manual                   GTP(4)

NAME
     gtp - Gemtek PCI FM radio device

SYNOPSIS
     gtp*   at pci? flags 0x00
     radio* at gtp?

DESCRIPTION
     The gtp driver provides support for the Gemtek PCI and Guillemot MaxiRa-
     dio FM2000 FM radio tuners.

     The Gemtek PCI cards are stereo FM tuners that can tune in the range 87.5
     - 108.0 MHz, report signal status and stereo/mono on the current frequen-
     cy, force audio output to mono, perform hardware signal search, and have
     an internal AFC.

     The card is based on the TEA5757 chip; see radio(4) for details.

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

SEE ALSO
     intro(4), pci(4), radio(4), radio(9)

HISTORY
     The gtp device driver appeared in OpenBSD 3.2.

AUTHORS
     The gtp driver and the man page was written by Vladimir Popov
     <jumbo@narod.ru>.

BUGS
     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 (changed by some program that uses direct port access).

OpenBSD 4.7                      May 31, 2007                                1
