STRUCT TUNERTYPE(9)

🦋 NAME 🦋

okay so this is struct tunertype(9) from the Kernel API Manual — it describes the known tuners. that's it, that's the whole vibe 💅

✨ SYNOPSIS ✨

struct tunertype {
    char *name;
    unsigned int count;
    const struct tuner_params *params;
    u16 min;
    u16 max;
    u32 stepsize;
    u8 *initdata;
    u8 *sleepdata;
 };

like, look at her. iconic struct. no notes. 🎀

💖 Members 💖

• name — a string with the tuner's name. literally just her government name bestie 🫶
• count — the size of the struct tuner_params array. so, how many of them there are 💫
• params — pointer to that struct tuner_params array. the main character pointer energy fr fr 👑
• min — minimal tuner frequency, in 62.5 kHz step. should be multiplied to 16 to convert to MHz. yes, 16. not a typo, that's what it says 🔥
• max — minimal tuner frequency, in 62.5 kHz step. should be multiplied to 16 to convert to MHz.

not me pointing out that the page says minimal here too — same wording as min, no cap, i'm just the messenger 🙈 i'm not gonna invent a different meaning for it, so take it exactly as written 💀

• stepsize — frequency step, in Hz. the little hops she does 🦋
• initdata — optional byte sequence to initialize the tuner. optional!! so don't stress if she doesn't have one 🌸
• sleepdata — optional byte sequence to power down the tuner. nap time byte sequence, we love a rest era 😴💜

🌈 SEE ALSO 🌈

• Kernel file ./include/media/tuner-types.h
• enum param_type(9)
• struct tuner_range(9)
• struct tuner_params(9)

go read those next, iykyk ⭐

and that's the whole page!! mwah 💖 this little writeup lives at ./include/media and it's dated October 2026 — so yeah, timestamped and everything, periods before i even got here 🎀✨