GTP(4)							   BSD Kernel Interfaces 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 MaxiRadio 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
     frequency, 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 and subsequently in NetBSD 1.6 wherein it replaced the mr(4) driver.

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).

BSD
								  March 26, 2011							       BSD