link_detect_..._edid_header(9)

💖 link_detect_evaluate_edid_header 💖

okay bestie, welcome to the link_detect_..._edid_header(9) page from the Kernel API Manual — manual name folded in near the top, as requested, and we are so back. ✨ This one is short and iconic: it's all about checking an EDID header and deciding if it's acceptable. No cap.

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🎀 NAME 🎀

link_detect_evaluate_edid_header — evaluate if an EDID header is acceptable. Yes, that's literally the whole name, bestie. 💅

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✨ SYNOPSIS ✨

bool link_detect_evaluate_edid_header (uint8_t edid_header[8] );

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🫶 ARGUMENTS 🫶

• edid_header — the first 8 bytes of the EDID read from DDC. That's the whole little snack. 🍓

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🦋 DESCRIPTION 🦋

This function evaluates an 8-byte EDID header to check if it's good enough for the purpose of determining whether a display is connected without reading the full EDID. It's giving "quick vibe check, not a whole deep dive" energy. 🔥

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🌈 RETURN 🌈

• true — if the header looks valid (>= 6 of 8 bytes match the expected 00/FF pattern). Slay. 👑
• false — otherwise. Sad little no. 😭

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🌸 SEE ALSO 🌸

• Kernel file ./drivers/gpu/drm/amd/display/dc/link/link_detection.c
• link_detect_ddc_probe(9)
• link_detect_dac_load_detect(9)
• link_detect_connection_type_analog(9)

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xoxo, this tea came from the ./drivers/gpu/drm/amd/display/... source, dated October 2026, under the link_detect_..._edid_header(9) footer vibe — bye bestie! 🫶💜✨