msm_dp_aux_transfer_helper(9)

🎀 NAME 🎀

msm_dp_aux_transfer_helper — bestie, it's the helper function for EDID read transactions ✨

So this page lives in the Kernel API Manual, and it's all about one lil' function that fixes up EDID reads. Iconic behaviour, honestly.

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✨ SYNOPSIS ✨

void msm_dp_aux_transfer_helper (struct msm_dp_aux_private *aux , struct
drm_dp_aux_msg *input_msg , bool send_seg );

Yup, that's the whole signature — void in, void out, three arguments in the middle. Slay. 💅

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🌸 ARGUMENTS 🌸

• aux — the DP AUX private structure 💖 like, the whole context of the thing.
• input_msg — the input message coming in from the DRM upstream APIs 🦋
• send_seg — a bool that says whether to send the segment to the sink 🎀 yes ma'am, segment-sending is a whole mood.

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👑 RETURN 👑

void

That's it. Nothing comes back. No return value, no drama, just vibes. 🫶

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💫 DESCRIPTION 💫

Okay so here's the tea ☕: this helper function exists to fix EDID reads for non-compliant sinks — the ones that do not handle the i2c middle-of-transaction flag correctly. Like, imagine a sink that just fumbles the bag on the i2c middle-of-transaction flag 😭 and this function is the fairy godmother that patches the whole situation. It's giving "fixer upper" in the best way. 🧚

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/msm/dp/dp_aux.c — go read the source, bestie, it's right there 🔥

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Ngl, if you're debugging EDID reads and something smells like a non-compliant sink, this is your girl. Periodt. 💜

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Alright bestie, that's the whole page — brought to you by the Kernel API Manual, straight out of ./drivers/gpu/drm/msm/dp, dated October 2026, and titled msm_dp_aux_transfer_helper(9). Mwah 💋 go fix some EDID reads, ily 🍓