STRUCT DVB_DISEQC_MASTER_CMD(9)

💅 struct dvb_diseqc_master_cmd(9) 💅

okay so bestie, welcome to the Kernel API Manual, section 9 — this one's all about struct dvb_diseqc_master_cmd, aka the DiSEqC master command. it's giving "small struct, big satellite energy" 🛰️✨

---

✨ NAME ✨

struct dvb_diseqc_master_cmd — DiSEqC master command 🎀

---

🦋 SYNOPSIS 🦋

like, here's the whole thing, she's tiny but she's iconic:

struct dvb_diseqc_master_cmd {
    __u8 msg[6];
    __u8 msg_len;
 };

---

🌸 Members 🌸

• msg — the DiSEqC message that's gonna be sent out into the world 💌. it contains a 3 bytes header with: framing + address + command, plus an optional argument of up to 3 bytes of data. so like, header first, then maybe some extra data if she feels like it 🫶
• msg_len — the length of the DiSEqC message. valid values are 3 to 6. that's the whole vibe check: outside 3–6 and you're not valid, no cap 💀

---

🌈 Description 🌈

go check out the DiSEqC bus spec, it lives at http://www.eutelsat.org/ — that's where all the possible messages you can use are listed 📜✨ like, the struct just carries the message, the spec tells you what to actually put in there, iykyk.

---

👑 SEE ALSO 👑

kernel file ./include/uapi/linux/dvb/frontend.h and honestly her whole friend group:

• enum fe_caps(9)
• struct dvb_frontend_info(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)

that's the whole squad, fr fr 🫶💖

---

and that's the page, bestie 💅✨ this lil rewrite came from the source dir ./include/uapi/linux/dvb, dated October 2026 — slay, go read the actual spec now 🎀🦋