dm_mst_test...native_write(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_mst_test_aux_transfer_native_write — a kernel API manual page (section 9, bestie)

okay so real talk, this is a Kernel API Manual page, section 9, and the function we're hyping up today is dm_mst_test_aux_transfer_native_write. it's a whole vibe. let's get into it 🎀

✨ NAME ✨

dm_mst_test_aux_transfer_native_write — literally a native AUX write that goes through the DM callback. that's the whole gig. no cap. 🦋

🌸 SYNOPSIS 🌸

void dm_mst_test_aux_transfer_native_write (struct kunit *test );

look at her. pristine. returns nothing (void), takes exactly one thing, and she is serving. 💅

🧚 ARGUMENTS 🧚

  • test — the KUnit test context, aka the main character of this whole operation. she holds the state, you just hand her over. 🫶

🔥 DESCRIPTION 🔥

okay so here's the tea: a successful write with an ACK reply should report back the requested write size — like, "yes bestie, i wrote that many bytes, you're welcome" — and it also has to pass a write payload into the fake DC link service. that fake link service is doing the absolute most and we love her for it. ⭐

so basically: write goes out, ACK comes back, size gets reported correctly, payload lands where it's supposed to. slay. that's the test. periodt. 👑

🌈 SEE ALSO 🌈

buckle up babes, this is a long list and every single one of these is iconic in her own right:

like i said. a whole roster. go read them all, they're all bangers. 🔥

lowkey a reminder bestie: these are test helpers living in drivers/gpu/drm/amd/display/amdgpu_dm/tests/, so treat them like the test code they are — no funny business in production. 🙈

and that's the page!! 💖 this lil manual came out of the kernel source tree — the footer's source/version is just ./drivers/gpu/drm/amd/display/... (the path got cut off by the original, so that's all we've got, sorry bestie 😭 lowercase sad) and the date stamp is October 2026. mark your calendar, she's from the future. 🌸✨🫶

📦 where this page comes from