dm_test_hdcp...rs_connector(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_hdcp...rs_connector(9) — yeah that's the abbreviated name, bestie, it's from the Kernel API Manual, section 9 🎀

Okay so real talk — the title got cut off in the header (it's giving "ran out of room at the function name"), but the actual star of this page is dm_test_hdcp_update_display_enable_registers_connector. It's a KUnit test. It's niche. It's iconic. Let's get into it 🦋

✨ NAME ✨

dm_test_hdcp_update_display_enable_registers_connector — when you enable stuff, it stores the connector. That's the whole vibe, no cap 💅

🌸 SYNOPSIS 🌸

void dm_test_hdcp_update_display_enable_registers_connector (struct kunit *test );

That's it. Void return, one argument, absolutely zero drama. Periodt.

🫶 ARGUMENTS 🫶

  • test — the KUnit test context. It's literally just the test's little home base, the group-chat the test lives in 🧚

💖 DESCRIPTION 💖

So here's the tea, bestie ☕ — when you call hdcp_update_display with enable_encryption=true, the whole point of the exercise is that it should register that connector into the per-link aconnector array, sitting right at its connector index. That's the assignment. That's the moment. 👑

But — and this is the lowkey important part — the hdcp has no active display. So mod_hdcp_update_display is effectively a no-op. Like, it's there, it's called, but it does nothing. And because of that, the call must not touch encryption_status. Do not touch it. It is not yours. Hands off 🙈

So the vibe check is: yes the connector gets registered, no the encryption status stays exactly where it was. Fr fr. ⭐

👑 SEE ALSO 👑

🎀 Kernel file 🎀

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

🌈 The whole friend group (yes, all of them, I would never leave anyone out) 🌈

Okay but genuinely, bestie — that linked list is a whole squad and every single one of them matters. Sending love to each 💜

Mwah 💋 — this page came from ./drivers/gpu/drm/amd/display/..., dated October 2026, and it's the dm_test_hdcp...rs_connector(9) page, which honestly deserves a better abbreviated name but we work with what we've got 🍓

📦 where this page comes from