STRUCT DVB_FRONTEND_INFO(9)

🌸 struct dvb_frontend_info — from the Kernel API Manual ✨

okay bestie, so this is the struct dvb_frontend_info(9) page, straight out of the Kernel API Manual, and it's basically the little ID card your frontend hands you so you know what it can and can't do 💅

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💖 NAME

struct dvb_frontend_info — frontend properties and capabilities. that's it, that's the whole vibe: it's the glow-up resume of your frontend 🎀

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✨ SYNOPSIS

here's the whole struct, bestie, no cap — every field exactly as it lives in the header:

struct dvb_frontend_info {
    char name[128];
    enum fe_type type;
    __u32 frequency_min;
    __u32 frequency_max;
    __u32 frequency_stepsize;
    __u32 frequency_tolerance;
    __u32 symbol_rate_min;
    __u32 symbol_rate_max;
    __u32 symbol_rate_tolerance;
    __u32 notifier_delay;
    enum fe_caps caps;
 };

🫶 Members

• name — the name of the frontend. literally its government name 🪪
• type — DEPRECATED, bestie, do not use this on modern programs 😭 a frontend can have more than one type, so this field just cannot keep up. if you wanna know what delivery systems a given frontend actually supports, use DTV_ENUM_DELSYS instead — that's the main character here 👑
• frequency_min — minimal frequency supported by the frontend.
• frequency_max — minimal frequency supported by the frontend. (yes, the page actually says "minimal" here too — I'm not gaslighting you, that's just what the doc says 🙈 I'm literally the messenger)
• frequency_stepsize — all frequencies are multiples of this value. everything lines up on the grid, periodt 💅
• frequency_tolerance — the frequency tolerance.
• symbol_rate_min — minimal symbol rate, in bauds (for Cable/Satellite systems).
• symbol_rate_max — maximal symbol rate, in bauds (for Cable/Satellite systems).
• symbol_rate_tolerance — maximal symbol rate tolerance, in ppm (for Cable/Satellite systems).
• notifier_delay — DEPRECATED, and not used by any driver. it's giving retired legend 🫡
• caps — the capabilities supported by the frontend, as specified in enum fe_caps. this is the moment the frontend flexes 🔥

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🦋 Description

⚠️ note, and this part matters so listen up bestie: 1. the frequencies are specified in Hz for Terrestrial and Cable systems. 2. the frequencies are specified in kHz for Satellite systems. same struct, different units depending on the system — check before you math, fr fr 😭

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🌈 SEE ALSO

kernel file ./include/uapi/linux/dvb/frontend.h, plus the whole friend group:

• enum fe_caps(9)
• struct dvb_diseqc_master_cmd(9)
• struct dvb_diseqc_slave_reply(9)
• enum fe_sec_voltage(9)
• enum fe_sec_tone_mode(9)
• enum fe_sec_mini_cmd(9)
• enum fe_status(9)
• enum fe_spectral_inversion(9)
• enum fe_code_rate(9)
• enum fe_modulation(9)
• enum fe_transmit_mode(9)
• enum fe_guard_interval(9)
• enum fe_hierarchy(9)
• enum fe_interleaving(9)
• enum fe_pilot(9)
• enum fe_rolloff(9)
• enum fe_delivery_system(9)
• enum atscmh_sccc_block_mode(9)
• enum atscmh_sccc_code_mode(9)
• enum atscmh_rs_frame_ensemble(9)
• enum atscmh_rs_frame_mode(9)
• enum atscmh_rs_code_mode(9)
• enum fecap_scale_params(9)
• struct dtv_stats(9)
• struct dtv_fe_stats(9)
• struct dtv_property(9)
• struct dtv_properties(9)

like, that's a whole group chat right there 🫶

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and that's the page!! 💜 this one lives at ./include/uapi/linux/dvb and it's dated October 2026 — go off, kernel docs, you ate 🎀✨