dm_test_even...red_when_off(9)

📦 version 7.3.1, in nixpkgs unstable

Welcome to the Kernel API Manual page for dm_test_even...red_when_off(9), bestie 💖 — yes, the manual name is literally that truncated-looking string, ... included. This is the KUnit test that checks HDCP off maps to DESIRED, and we're gonna read it like a group chat, no cap.

💖 NAME 💖

dm_test_event_property_update_desired_when_off — HDCP off maps to DESIRED. That's the official one-liner, periodt.

✨ SYNOPSIS ✨

void dm_test_event_property_update_desired_when_off (struct kunit *test
);

🎀 ARGUMENTS 🎀

  • test — the KUnit test context, aka the little test-world suitcase this function gets handed 🧳

🦋 DESCRIPTION 🦋

Okay so picture a fully connected display with HDCP_OFF encryption, and it's driving the connected path. The modeset lock is taken, hdcp_get_content_protection_from_status reports DRM_MODE_CONTENT_PROTECTION_DESIRED, and drm_hdcp_update_content_protection is called. That's the main-character sequence, fr fr.

The connector state is pre-set to DESIRED, so the value is unchanged — meaning no sysfs event — and the deep path completes cleanly. No drama, just a clean finish. Slay. 💅

🌈 SEE ALSO 🌈

The original sends you to the kernel file and a whole friend group of tests — every single one is below, bestie, no skips:

💌 xoxo, bestie — signed from the ./drivers/gpu/drm/amd/display/... source/version corner, dated October 2026. Now go slay those HDCP tests, iykyk 💅✨

📦 where this page comes from