dm_register_...ify_callback(9)

🌸 NAME 🌸

okay so welcome to the Kernel API Manual page for dm_register_...ify_callback(9) — yes, the header is doing the most, but the actual function is dm_register_dmub_notify_callback, and it Sets callback for DMUB notify. periodt 💅

• dm_register_dmub_notify_callback — Sets callback for DMUB notify

---

✨ SYNOPSIS ✨

bestie, here's the whole signature, copied exactly so nobody comes for me:

bool dm_register_dmub_notify_callback (struct amdgpu_device *adev , enum
dmub_notification_type type , dmub_notify_interrupt_callback_t callback
, bool dmub_int_thread_offload );

---

🎀 ARGUMENTS 🎀

• adev — it's the amdgpu_device pointer, bestie. the main character of the GPU device world 🫶
• type — the type of dmub notification. gotta know what kinda notification we're dealing with 💌
• callback — the Dmub interrupt callback function. like, the function that gets called when the interrupt says hi 🔥
• dmub_int_thread_offload — the offload indicator. literally the little flag that says whether we're offloading or not 👑

---

🦋 DESCRIPTION 🦋

so this is the API to register a dmub callback handler for a dmub notification. iconic. it also sets an indicator for whether callback processing is supposed to be offloaded — specifically, offloaded to the dmub interrupt handling thread. no cap, that's the whole vibe check 💖

---

💀 RETURN 💀

it returns true if successfully registered, and false if there is existing registration. so like, false means somebody already claimed that spot 😭 — no silent overwrite drama here, fr fr.

---

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_dmub.c
• dm_dmub_aux_setconfig_callback(9)

---

mwah 💋 — this page came from source/version ./drivers/gpu/drm/amd/display/..., dated October 2026, and yes bestie it's still the dm_register_...ify_callback(9) page. byeee 🫶✨