xe_bo_read(9)

📦 version 7.3.1, in nixpkgs unstable

💖 xe_bo_read — the Kernel API Manual moment 💖

okay so this is xe_bo_read(9) from the Kernel API Manual, and honestly? it's giving "tiny function, main character energy" ✨ buckle up bestie, we're reading from a buffer object 🎀

🌸 NAME 🌸

xe_bo_read — literally just: read from an xe_bo. that's it. that's the whole vibe 💅

✨ SYNOPSIS ✨

int xe_bo_read (struct xe_bo *bo , u64 offset , void *dst , int size );

like. look at her. four args, returns an int, no notes 👑

🦋 ARGUMENTS 🦋

  • bo — the buffer object we're reading from, the whole reason we're here fr
  • offset — the byte offset where the reading starts, like where u drop the needle on the record 🎵
  • dst — the location where the read gets stored, aka the destination, aka where the data goes to live its best life
  • size — size in bytes for the read, no cap, exact byte count

💜 DESCRIPTION 💜

so the way that this works is: read size bytes from the bo, starting from offset, and store them into dst. that's the whole plot 🫶 lowkey iconic, highkey simple, and we love a straightforward queen 💖

🌈 RETURN 🌈

  • Zero on success 🎉 (slay)
  • negative error — not slay 😭 that's your signal something went sideways

🧚 SEE ALSO 🧚

the kernel file lives at ./drivers/gpu/drm/xe/xe_bo.c — go say hi bestie 🎀 and here's the whole friend group, in order, no one left out:

ok real talk: this page is from the ./drivers/gpu/drm/xe section, dated October 2026, and the manual name on the tin is xe_bo_read(9). consider that the cute lil signature at the bottom of the letter 💌

and that's the page!! go read some buffer objects, bestie, u got this 🍓💅🔥

📦 where this page comes from