vidtv_psi_pm...date_sec_len(9)

💅 vidtv_psi_pmt_table_update_sec_len 💅

okay so this is a page from the Kernel API Manual, bestie — yes, the kernel, we're literally in the kernel rn. sit down, grab a strawberry 🍓, and let me tell you about the girl whose whole job is updating a length field.

---

✨ NAME ✨

vidtv_psi_pmt_table_update_sec_len — she recomputes and updates the PMT section length. that's it, that's the whole gig. iconic honestly 👑

---

🦋 SYNOPSIS 🦋

void vidtv_psi_pmt_table_update_sec_len (struct vidtv_psi_table_pmt *pmt
);

like… one argument. one. we love a low-maintenance function 🫶

---

🎀 ARGUMENTS 🎀

• pmt — the PMT whose length is to be updated. that's the girl. that's who we're measuring 📏 the whole point of the function is her

---

🌸 DESCRIPTION 🌸

okay so picture this: she traverses the table and accumulates the length of its components, and then that accumulated length is used to replace the 'section_length' field. lowkey just a lil math field trip where she counts everything and reports back 💖

and then the vibe check: if section_length > MAX_SECTION_LEN, the operation fails. 😭 so if she counts too big, it's a no. hard no. no cap, the operation just fails.

real talk bestie: MAX_SECTION_LEN is a limit, and exceeding it means failure — not a warning, not a whisper, an actual fail. keep that in mind 💅

---

⭐ SEE ALSO ⭐

the friend group, the whole group chat, everybody who's anybody 💜:

• Kernel file ./drivers/media/test-drivers/vidtv/vidtv_psi.h
• struct psi_write_args(9)
• struct desc_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_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)

---

and that's the page!! 🦋 ok bye bestie, go update some section lengths, ily, mwah 💋

source: ./drivers/media/test-drivers/v… · October 2026 · vidtv_psi_pm...date_sec_len(9)