i915_gem_pread_ioctl(9)

🌸 NAME 🌸

okay so this is i915_gem_pread_ioctl(9), straight out of the Kernel API Manual, and the whole vibe is right there in the NAME: Reads data from the object referenced by handle. slay, that's it, that's the job 💅.

🦋 SYNOPSIS 🦋

bestie, here's the signature, copied exactly so nobody comes for me:

int i915_gem_pread_ioctl (struct drm_device *dev , void *data , struct
       drm_file *file );

🎀 ARGUMENTS 🎀

• dev — drm device pointer. main character energy, obviously.
• data — ioctl data blob. it's giving mysterious little payload 🫶.
• file — drm file pointer. the file bestie in question.

💅 DESCRIPTION 💅

okay so the DESCRIPTION is short and a lil ominous, no cap:

⚠️ On error, the contents of *data are undefined.

that's the whole warning, bestie — if this thing errors, do not trust what's sitting in *data 😭.

🌈 SEE ALSO 🌈

go read these too, iykyk:

• Kernel file ./drivers/gpu/drm/i915/i915_gem.c
• i915_gem_gtt_pwrite_fast(9)
• i915_gem_pwrite_ioctl(9)
• i915_gem_sw_finish_ioctl(9)

okay bestie, that's the whole page 💖 — it comes from the ./drivers/gpu/drm/i915 source, dated October 2026, and it's the i915_gem_pread_ioctl(9) manual page. periodt. 🎀✨