dvb_ringbuffer_pkt_write(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dvb_ringbuffer_pkt_write(9) ✨

okay bestie, so this is a page from the Kernel API Manual and it's literally the glow-up guide for dvb_ringbuffer_pkt_write — the function that slides a whole packet into a ringbuffer. no cap, it's giving "put the thing in the thing" but make it kernel 💅

🎀 NAME 🎀

dvb_ringbuffer_pkt_write — Write a packet into the ringbuffer. that's it, that's the whole vibe 🫶

🌸 SYNOPSIS 🌸

ssize_t dvb_ringbuffer_pkt_write (struct dvb_ringbuffer *rbuf , u8 *buf
, size_t len );

yes, bestie, that's the whole signature — three args, one ssize_t coming back at you ✨

🦋 ARGUMENTS 🦋

  • rbuf — Ringbuffer to write to. like, this is the destination, the main character of the operation 👑
  • buf — Buffer to write. the actual payload, the source material, the content 🍓
  • len — Length of buffer (currently limited to 65535 bytes max). so yes, there's a ceiling and it's 65535 bytes. no notes, that's just the rules 🙈

🔥 RETURN 🔥

Returns the Number of bytes written, or one of these lil bad-boy error codes if things go sideways 😭:

  • -EFAULT
  • -ENOMEM
  • -EINVAL

💜 SEE ALSO 💜

like, the whole friend group, fr fr — go read these too:

💀 reminder that len tops out at 65535 bytes — that's a current limit, so don't come crying to me when your oversized packet doesn't slay.

okay that's the whole page, mwah 💋 — this iconic lil doc lives in ./include/media, dated October 2026, and it's filed under dvb_ringbuffer_pkt_write(9) in the Kernel API Manual. periodt. 🧚‍♀️⭐

📦 where this page comes from