dvb_ringbuffer_read(9)

📦 version 7.3.1, in nixpkgs unstable

💖 dvb_ringbuffer_read(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one lives in dvb_ringbuffer_read(9) and it's giving "small function, big responsibility" energy. let's get into it ✨

🌸 NAME 🌸

dvb_ringbuffer_read — reads a buffer into a pointer 🫶

like... yes, that's literally what it says, and yes, it's also exactly what it does. iconic.

🎀 SYNOPSIS 🎀

void dvb_ringbuffer_read (struct dvb_ringbuffer *rbuf , u8 *buf , size_t
len );

copy it exactly like that, spacing and all, don't come for me, that's how it's printed 💅

🦋 ARGUMENTS 🦋

  • rbuf — pointer to struct dvb_ringbuffer. this is the ring buffer in question, the main character, the source of the data 🎀
  • buf — pointer to the buffer where the data will be stored. this is where the bytes go to live afterwards 💖
  • len — bytes from ring buffer into buf. i.e. how much you're scooping out 🍓

✨ DESCRIPTION ✨

so this variant assumes that the buffer is memory at the Kernel space. kernel-side memory, no userland shenanigans, no copy-to-user elegance — that's the whole vibe of this one. if you're dealing with a user-space pointer, that is not this function's job, and it will not be pretending otherwise 🙈

⭐ RETURN ⭐

returns number of bytes transferred, or -EFAULT if the vibe check fails 😭

💜 SEE ALSO 💜

okay this list is LONG, hydrate before reading. literally the whole ring buffer friend group 👑

all of them. every single one. no skipping, bestie, i see you 👀

lowkey reminder: that buf is kernel memory. read the DESCRIPTION again if you were about to do something spicy 🔥

and that's the page!! source location is ./include/media, dated October 2026, and it's page dvb_ringbuffer_read(9) out of the Kernel API Manual — mwah, go read your ring buffers responsibly 💅💖🎀🦋

📦 where this page comes from