tuner_s_tuner(9)

💅 tuner_s_tuner(9) 💅

okay so bestie, welcome to the kernel API manual — this one's from the Kernel API Manual corner of the universe, and it's literally the glow-up guide for tuner_s_tuner. she's a little function with one job and honestly? she ate. 🎀

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✨ NAME ✨

tuner_s_tuner — set the tuner's audio mode 🔊🦋

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🌸 SYNOPSIS 🌸

int tuner_s_tuner (struct v4l2_subdev *sd , const struct v4l2_tuner *vt
);

like, that's the whole vibe. two pointers, one int, no cap. ✨

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🎀 ARGUMENTS 🎀

• sd — pointer to struct v4l2_subdev — the subdev in question, main character energy fr fr 💅
• vt — pointer to struct v4l2_tuner — the tuner struct, aka the one carrying the details 👑

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💖 DESCRIPTION 💖

she sets the audio mode — but only if the tuner matches vt->type. it's giving conditional slay. no match, no audio mode, periodt. 🎧✨

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🫶 NOTE 🫶

⚠️ bestie pls — vt->type should be initialized before calling it. don't just roll up with an uninitialized struct, that's not the vibe. 🙈

and like, who does that initialization? either video_ioctl2 or the bridge driver. those two handle it, so you don't have to. iconic of them tbh. 🌈

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/media/v4l2-core/tuner-core.c — the source of truth, go read her 📖💜
• enum tuner_pad_index(9)
• enum if_vid_dec_pad_index(9)
• set_type(9)
• tuner_s_type_addr(9)
• tuner_s_config(9)
• tuner_lookup(9)
• tuner_probe(9)
• tuner_remove(9)
• check_mode(9)
• set_mode(9)
• set_freq(9)
• set_tv_freq(9)
• tuner_fixup_std(9)
• set_radio_freq(9)
• tuner_status(9)
• tuner_standby(9)
• tuner_g_frequency(9)
• tuner_g_tuner(9)

like, the whole friend group showed up. we love a linked-list of besties. 🫶💖

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and that's the page, bestie!! 🧚✨ this little icon lives in ./drivers/media/v4l2-core and the docs are stamped October 2026 — so go forth, set that audio mode, and remember: initialize your types before you call. mwah 💋💅