STRUCT DTV_PROPERTY(9)

✨ struct dtv_property(9) ✨

okay so this is from the Kernel API Manual, bestie — it's literally the little container that holds one frontend command and the value that goes with it. one command. one value. main character energy but make it a struct 🎀

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🌸 NAME 🌸

struct dtv_property — stores one of the frontend command and its value. that's it, that's the whole job, and she does it flawlessly 💅

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✨ SYNOPSIS ✨

struct dtv_property {
    __u32 cmd;
    __u32 reserved[3];
    union {
      __u32 data;
      struct dtv_fe_stats st;
      struct {
        __u8 data[32];
        __u32 len;
        __u32 reserved1[3];
        void *reserved2;
      } buffer;
    } u;
    int result;
 };

no cap, that's the whole shape of her 🫶

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🎀 Members 🎀

okay bestie, let's go through every single member because we do not skip ✨

• cmd — the Digital TV command. this is the "what are we even doing here" field 💫
• reserved — not used. literally just sitting there, holding space, being an icon 🪑✨
• u — the union that carries the values for the command. whatever cmd says, u is the one holding the actual payload 🫴
• u.data — an unsigned 32 bits integer with the command value. small, mighty, to the point 🔥
• u.st — a struct dtv_fe_stats array of statistics. stats girlies rise 🙌
• u.buffer — a struct for storing bigger properties. heads up though: currently unused 💀 she's built but she's not booked.
• u.buffer.data — an unsigned 32-bits array. the actual bytes live here 🌈
• u.buffer.len — number of elements of the buffer. she keeps count, she's organized 💅
• u.buffer.reserved1 — reserved. again. respectfully, not used 🙈
• u.buffer.reserved2 — reserved. also not used. matching set with reserved1, it's giving coordinated 🎀
• result — currently unused. manifesting a glow-up for her someday 😭

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💖 SEE ALSO 💖

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

enum fe_caps(9), struct dvb_frontend_info(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_properties(9)

like, that's the entire group chat and every one of them is invited 🦋

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and that's the page, bestie 💜 sourced straight from ./include/uapi/linux/dvb, dated October 2026 — slay, periodt, go read the headers 📚✨