drm_hdcp_upd...t_protection(9)

💅 drm_hdcp_update_content_protection — the kernel API manual, but make it make sense

okay so bestie, buckle up 🎀 this one is from the Kernel API Manual, and it's literally all about telling everyone when a connector's content protection status changes. no cap.

---

✨ NAME ✨

drm_hdcp_update_content_protection — updates the content protection state of a connector 🦋

like, it's the glow-up notification for your HDCP status, periodt.

---

✨ SYNOPSIS ✨

void drm_hdcp_update_content_protection (struct drm_connector *connector
, u64 val );

she's a void, she returns nothing, she simply does 💅

---

✨ ARGUMENTS ✨

• connector — the drm_connector whose content protection state needs an update 🫶 like, this is the one getting the makeover.
• val — the new state of the content protection property ✨ the fresh new look, basically.

---

✨ DESCRIPTION ✨

so here's the tea ☕ display drivers can use this function to update the kernel-triggered content protection state changes of a drm_connector — think transitions like DESIRED->ENABLED and ENABLED->DESIRED 🔥

🚨 important, bestie: there's no uevent for DESIRED->UNDESIRED or ENABLED->UNDESIRED, because in those cases it's userspace triggering that state change and the kernel performs it without fail. so like, don't go looking for a notification that isn't coming 💀

this function updates the new state of the property into the connector's state and generates an uevent to notify the userspace 🌸 so everyone stays in the loop, iykyk.

---

✨ SEE ALSO ✨

• the kernel file ./drivers/gpu/drm/display/drm_hdcp_helper.c 👑
• drm_hdcp_check_ksvs_revoked(9) 🧚
• drm_connector_attach_content_protection_property(9) 💜

---

and that's the whole vibe 🦋 this icon lives over in ./drivers/gpu/drm/display, dated October 2026, and it's serving drm_hdcp_upd...t_protection(9) realness from the Kernel API Manual. go off, king 👑💖