STRUCT ANALOG_DEMOD_OPS(9)

👑 struct analog_demod_ops(9) — bestie edition

okay so this is a page straight out of the Kernel API Manual, and it's about struct analog_demod_ops — literally the demodulation info and callbacks for analog TV and radio 🎀. yes it's old-school analog, yes it still slays. stay with me.

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✨ NAME ✨

struct analog_demod_ops — demodulation information and callbacks for analog TV and radio 💖

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🌸 SYNOPSIS 🌸

like, here's the whole vibe, verbatim, no cap:

struct analog_demod_ops {
    struct analog_demod_info info;
    void (*set_params)(struct dvb_frontend *fe, struct analog_parameters
*params);
    int (*has_signal)(struct dvb_frontend *fe, u16 *signal);
    int (*get_afc)(struct dvb_frontend *fe, s32 *afc);
    void (*tuner_status)(struct dvb_frontend *fe);
    void (*standby)(struct dvb_frontend *fe);
    void (*release)(struct dvb_frontend *fe);
    int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
    int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
};

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💅 Members 💅

group chat roll call, one by one 🫶

• info — a pointer to struct analog_demod_info. that's it, that's the whole job 💜
• set_params — callback function used to inform the demod to set the demodulator parameters needed to decode an analog or radio channel. the properties get passed via struct analog_params. it's giving "here are your settings, go off" ✨
• has_signal — returns 0xffff if has signal, or 0 if it doesn't. yes it's literally just vibes: 0xffff = we're so back, 0 = it's so over 😭
• get_afc — used only by analog TV core. reports the frequency drift due to AFC. lowkey a little snitch, but in a helpful way 🦋
• tuner_status — callback function that returns tuner status bits, e. g. TUNER_STATUS_LOCKED and TUNER_STATUS_STEREO. it's giving status update bestie 🔥
• standby — set the tuner to standby mode. nap time, periodt 💤
• release — callback function called when frontend is detached. drivers should free any allocated memory. no leaks, no crumbs, we leave it spotless 🧹💅
• i2c_gate_ctrl — controls the I2C gate. newer drivers should use I2C mux support instead 👀 so like... it works, but it's not the moment anymore.
• set_config — callback function used to send some tuner-specific parameters. custom-fit, just for your tuner 🎀

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🦋 SEE ALSO 🦋

the whole friend group, linked below 💖

• Kernel file ./include/media/dvb_frontend.h
• struct dvb_frontend_tune_settings(9)
• struct dvb_tuner_info(9)
• struct analog_parameters(9)
• enum dvbfe_algo(9)
• enum dvbfe_search(9)
• struct dvb_tuner_ops(9)
• struct analog_demod_info(9)
• struct dvb_frontend_internal_info(9)
• struct dvb_frontend_ops(9)
• struct dtv_frontend_properties(9)
• struct dvb_frontend(9)
• dvb_register_frontend(9)
• dvb_unregister_frontend(9)
• dvb_frontend_detach(9)
• dvb_frontend_suspend(9)
• dvb_frontend_resume(9)
• dvb_frontend_reinitialise(9)
• dvb_frontend_sleep_until(9)

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mwah 💋 this page lives in ./include/media and it's dated October 2026 — go read it, ily, bye 🫶✨