GTP(4)

📦 version 11.0, in nixpkgs unstable

GTP(4): Gemtek PCI FM radio device 🎀

Hiii bestie! This is GTP(4), from the Kernel Interfaces Manual, and it's all about a lil FM radio hardware situation. 💖 No cap, it's giving retro tuner main character energy. 📻✨

🌸 NAME 🌸

gtp — Gemtek PCI FM radio device

✨ SYNOPSIS ✨

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

💅 DESCRIPTION 💅

Okay so 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. That's a whole lot of radio glow-up, fr fr. 📻✨

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. Lowkey iconic how one tiny flag changes the chip assumption. 👑

🔍 SEE ALSO 🔍

🕰️ HISTORY 🕰️

The gtp device driver appeared in OpenBSD 3.2 and subsequently in NetBSD 1.6 wherein it replaced the mr(4) driver. A true crossover era moment. 🌈

👑 AUTHORS 👑

The gtp driver and this man page were written by Vladimir Popov <jumbo@narod.ru>. Respect the author, bestie. 🫶

💀 BUGS 💀

⚠️ Bestie, it is impossible to determine which frequency the card is tuned to. So the driver will report an internally stored value even if it is not correct — like if some program that uses direct port access changed it. 💀

Cute sign-off: this is GTP(4) from the Debian manual source, dated March 26, 2011. 💌✨

📦 where this page comes from