amdgpu_atpx_init(9)

💅 amdgpu_atpx_init — but make it a whole vibe

okay so bestie, welcome to the amdgpu_atpx_init(9) page from the Kernel API Manual ✨ yeah that's the whole title, we're being fancy today. this one's short and sweet, which honestly? we love that for us 🎀

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🌸 NAME 🌸

amdgpu_atpx_init — literally just says "verify the ATPX interface" and dips 💖

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✨ SYNOPSIS ✨

int amdgpu_atpx_init (void );

look at her. no arguments, no drama, just a void and a dream 😌

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🦋 ARGUMENTS 🦋

• void — no arguments. like, none. zero. nothing to pass in, bestie 🫶

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💜 DESCRIPTION 💜

okay so what does she actually do? she verifies the ATPX interface, and this goes for all asics — every single one, no exceptions, we're not playing favorites 💅

and the return value? iconic behavior only:

• 0 on success — slay, we love a clean win 👑
• error on failure — and yeah, that's it, that's the whole contract 😭

no cap, that's genuinely the entire description. short queen energy.

lowkey a vibe check of a function ngl. but hey, someone's gotta do it 🧚

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🌈 SEE ALSO 🌈

first up, the kernel file this lives in, keep it safe 🥺:

• ./drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c

and now the whole friend group — every one of these is part of the ATPX saga, go say hi 💖:

• amdgpu_atpx_call(9)
• amdgpu_atpx_parse_functions(9)
• amdgpu_atpx_validate(9)
• amdgpu_atpx_verify_interface(9)
• amdgpu_atpx_set_discrete_state(9)
• amdgpu_atpx_switch_disp_mux(9)
• amdgpu_atpx_switch_i2c_mux(9)
• amdgpu_atpx_switch_start(9)
• amdgpu_atpx_switch_end(9)
• amdgpu_atpx_switchto(9)
• amdgpu_atpx_power_state(9)
• amdgpu_atpx_pci_probe_handle(9)
• amdgpu_atpx_get_client_id(9)
• amdgpu_atpx_detect(9)
• amdgpu_register_atpx_handler(9)
• amdgpu_unregister_atpx_handler(9)

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and that's the page, bestie 🎀 this little love letter came to you from ./drivers/gpu/drm/amd/amdgpu 💖 dated October 2026, and yes the page itself is amdgpu_atpx_init(9) — iykyk 💅✨🌷