STRUCT VIDTV_MUX_SI(9)

💅 struct vidtv_mux_si(9) — Kernel API Manual

okay bestie, buckle up, because we're diving into the Kernel API Manual together and this one's a struct page 🌸 (yes, the header said struct vidtv_mux_si(9), and yes it's giving very much "let me explain the lore").

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✨ NAME ✨

struct vidtv_mux_si — literally just here to store the PSI context. that's the whole job. icon behavior 👑

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🦋 SYNOPSIS 🦋

here's the whole shape of it, no cap, copy it exactly:

struct vidtv_mux_si {
    struct vidtv_psi_table_pat *pat;
    struct vidtv_psi_table_pmt **pmt_secs;
    struct vidtv_psi_table_sdt *sdt;
    struct vidtv_psi_table_nit *nit;
    struct vidtv_psi_table_eit *eit;
 };

like, five pointers. five little main characters. we love to see it 💖

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🎀 Members 🎀

let's meet the cast, shall we? 🫶

• pat — the PAT currently in use by the muxer. that's her job, that's her vibe.
• pmt_secs — the PMT sections in use by the muxer. and listen, it's one for each program in the PAT — so if the PAT has a whole friend group, pmt_secs is carrying all of them 😭
• sdt — the SDT in use by the muxer. showing up, doing the thing.
• nit — the NIT in use by the muxer. also present. also thriving.
• eit — the EIT in use by the muxer. (the original literally wrote it lowercase, "the EIT", and honestly? relatable. we keep it.)

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💀 Description 💀

so what is this thing for? lowkey simple: it stores the PAT, the PMT sections, and the SDT in use by the muxer. that's the whole assignment and she ate 🔥

now for the fun part — how does the muxer even get these? bestie, it goes looking into the hardcoded channels in vidtv_channel, and then it periodically sends the TS packets for them 👀 that's the whole loop. no guessing, that's just what it says.

ngl this is a struct page, so don't come here looking for exit statuses or signals — there aren't any. only vibes and pointers 🧚

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🌈 SEE ALSO 🌈

go read these next, i'm obsessed with cross-references honestly:

• the Kernel file ./drivers/media/test-drivers/vidtv/vidtv_mux.h
• struct vidtv_mux_timing(9)
• struct vidtv_mux_pid_ctx(9)
• struct vidtv_mux(9)
• struct vidtv_mux_init_args(9)

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and that's the page!! 🎀 source/version line was ./drivers/media/test-drivers/v... and the date stamp said October 2026, so like… mark your calendar bestie, and remember: struct vidtv_mux_si(9) forever 🦋✨💜