vcn_v3_0_enc_ring_set_wptr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vcn_v3_0_enc_ring_set_wptr — like, the whole Kernel API Manual page, bestie ✨

okay so picture this: you're deep in the Kernel API Manual, right, and you stumble on this lil function called vcn_v3_0_enc_ring_set_wptr. ngl the name is giving "I was named by a compiler" but trust, it's actually serving a purpose 🫶 let's get into it.

🌸 NAME 🌸

vcn_v3_0_enc_ring_set_wptr — set enc write pointer. that's it, that's the whole vibe ✨

🦋 SYNOPSIS 🦋

void vcn_v3_0_enc_ring_set_wptr (struct amdgpu_ring *ring );

returns void (so, like, no return value, she just does her thing and dips 💅) and takes exactly one arg. no cap.

🎀 ARGUMENTS 🎀

  • ring — an amdgpu_ring pointer. yep, that's the whole description, it's a pointer to an amdgpu_ring, and honestly? she said "here's my one job" and did it 😭

✨ DESCRIPTION ✨

okay so what does it do — it commits the enc write pointer to the hardware. that's the entire plot. one line, no drama, no subplot. it takes that enc write pointer and commits it to the hardware, periodt 🔥

literally that's it. iconic behaviour, honestly — some functions out here writing whole essays in their descriptions and this one is like "I commit the enc write pointer to the hardware, goodbye" 👑

🌈 SEE ALSO 🌈

the kernel file this cutie lives in:

  • ./drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c

and her whole friend group (iykyk, the man page family reunion 💖):

bestie note: yes the enc and dec ones are siblings and yes they will be compared at Thanksgiving 🙈 the getters exist too, this setter is just the one that commits the enc write pointer to the hardware 💅

and that's the whole page, mwah 🍓

sign-off szn: this lil slice of lore lives under ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yes the footer is just vcn_v3_0_enc_ring_set_wptr(9) all over again because she's her own main character 💜🧚‍♀️

📦 where this page comes from