STRUCT DESC_WRITE_ARGS(9)

✨ struct desc_write_args(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this little page is all about struct desc_write_args — literally the args you hand over when you wanna write a descriptor. yes, lowercase struct in the title, we respect the source, periodt.

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🌸 NAME 🌸

struct desc_write_args — Arguments in order to write a descriptor. that's it, that's the whole vibe. it's giving "here's everything you need to actually go write this thing" 🎀

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🦋 SYNOPSIS 🦋

struct desc_write_args {
    void *dest_buf;
    u32 dest_offset;
    struct vidtv_psi_desc *desc;
    u16 pid;
    u8 *continuity_counter;
    u32 dest_buf_sz;
    u32 *crc;
 };

look at her. seven members, all iconic, no notes 💅 (yes there's a stray space before that closing brace — we're keeping it exactly as she came into this world, no cap 🔥)

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🌈 Members 🌈

okay so let's go member by member, because each one is a main character in their own right:

• dest_buf — The buffer to write into. this is literally the canvas, the whole destination, the place where the writing happens 🖊️✨
• dest_offset — where to start writing in the dest_buffer. not in the dest_buf field name — the manpage says dest_buffer right there — copy it exactly, iykyk 🙈 as in: the position where the pen first touches the paper.
• desc — A pointer to the descriptor. just a pointer. pointing at the descriptor. slay 🫶
• pid — TS packet ID. that's the transport-stream packet's identifier 🎀
• continuity_counter — Incremented on every new packet. every. single. new. packet. she just keeps going up 💀
• dest_buf_sz — The size of the dest_buffer. gotta know how big the canvas is before you paint on it, fr fr 🖌️
• crc — a pointer to store the crc for this chunk. that's crc, lowercase, right here in the source, and we are not touching it ⭐

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👑 SEE ALSO 👑

go check these out, bestie, they're the whole friend group 💜 — Kernel file ./drivers/media/test-drivers/vidtv/vidtv_psi.h and then:

• struct psi_write_args(9)
• struct crc32_write_args(9)
• struct header_write_args(9)
• vidtv_psi_sdt_service_assign(9)
• vidtv_psi_desc_assign(9)
• vidtv_pmt_desc_assign(9)
• vidtv_sdt_desc_assign(9)
• vidtv_psi_pat_program_assign(9)
• vidtv_psi_pmt_stream_assign(9)
• vidtv_psi_pmt_create_sec_for_each_pat_entry(9)
• vidtv_psi_pmt_get_pid(9)
• vidtv_psi_pat_table_update_sec_len(9)
• vidtv_psi_pmt_table_update_sec_len(9)
• vidtv_psi_sdt_table_update_sec_len(9)
• struct vidtv_psi_pat_write_args(9)
• vidtv_psi_pat_write_into(9)
• struct vidtv_psi_sdt_write_args(9)
• vidtv_psi_sdt_write_into(9)
• struct vidtv_psi_pmt_write_args(9)
• vidtv_psi_pmt_write_into(9)
• vidtv_psi_find_pmt_sec(9)
• struct vidtv_psi_table_transport(9)
• struct vidtv_psi_table_nit(9)
• struct vidtv_psi_nit_write_args(9)
• vidtv_psi_nit_write_into(9)
• struct vidtv_psi_eit_write_args(9)
• vidtv_psi_eit_write_into(9)
• vidtv_psi_eit_table_update_sec_len(9)
• vidtv_psi_eit_event_assign(9)

all of them. every last one. no skipping, bestie, we don't do that here 🧚💖

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and that's the page!! 🎀 quick lil sign-off so you know where this came from: the source line reads ./drivers/media/test-drivers/v... (yes it's truncated in the original, we're not out here guessing at the rest, that would be lying and lying is not the vibe 🙈) and it's dated October 2026 💫 so mark your calendars, she's from the future. mwah, go write some descriptors responsibly 💅🌈