dm_test_dp_...dpcd_success(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 dm_test_dp_write_dpcd_success — kernel API manual, bestie edition 🎀

okay so real talk, this page lives in the Kernel API Manual (section 9, the kernel-internals girlies 💅), and the page name is dm_test_dp_...dpcd_success(9) — yes the title is literally abbreviated with dots, that's just how it's filed, don't come for me.

✨ NAME ✨

dm_test_dp_write_dpcd_success — Test DPCD write returns true on ACKed transfer 🦋

Like, that's the whole vibe: this is a KUnit test, and what it's testing is that a DPCD write comes back true when the transfer got ACKed. Periodt. 💖

✨ SYNOPSIS ✨

void dm_test_dp_write_dpcd_success (struct kunit *test );

no cap, that's the whole signature — void in, ~~void~~ (well, one arg) out. 🫶

✨ ARGUMENTS ✨

  • test — The KUnit test context ✨ (it's the KUnit struct, it's doing KUnit things, you pass it in and the framework handles the rest — that's the entire bit of lore here, and honestly? iconic.)

🌈 SEE ALSO 🌈

okay so this is the part where I show you the whole friend group 💜 — first the source file this test actually lives in:

Kernel file:

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_helpers_test.c

and then, like, every single sibling in the suite, no gatekeeping, all of them, in order, not one skipped because I would never 😭:

💀 friendly reminder that these are all (9) section references — if you're looking one up, that 9 is doing real work, don't drop it.

🎀 the cute sign-off 🎀

this page ships from ./drivers/gpu/drm/amd/display/... (yes, the path is abbreviated on the page, that's canon, I'm not expanding it, iykyk 🙈) and it's dated October 2026 ⭐ — so go forth, read your DPCD writes, get that ACK, and slay 💖✨🦋

📦 where this page comes from