msm_dp_link_parse_request(9)

💅 msm_dp_link_parse_request — a vibe check for your DisplayPort link, bestie

okay so real talk, this little function lives in the Kernel API Manual (yes, that's the manual name, we're fancy now 🎀) and it's basically the group-chat admin of DisplayPort link requests. it reads the tea straight from the sink and tells you what's being asked for. no cap. ✨

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🌸 NAME 🌸

msm_dp_link_parse_request — literally parses the link request parameters that come in from the sink, that's the whole job 💖

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🦋 SYNOPSIS 🦋

int msm_dp_link_parse_request (struct msm_dp_link_private *link );

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✨ ARGUMENTS ✨

• link — the Display Port Driver data, aka the main character struct 🫶 this is the thing we're poking at.

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💅 DESCRIPTION 💅

so here's what she does 👑 she parses the DPCD — yes, the DisplayPort Configuration Data, we stan — to check two things:

• whether an automated link is being requested (that's Byte 0x201 🔍), and
• what type of link automation is being requested (that's Byte 0x218 💫)

that's it, that's the whole function. she's not doing the automation, she's not judging the automation, she's just reading the DPCD so the rest of the driver knows what's up. iconic behaviour honestly. not her doing the work, just making sure everyone else's vibe check goes through 😭💖

ngl it's lowkey the opening scene of the whole link-request arc — everything downstream is built on these two bytes. 🎬

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🌈 SEE ALSO 🌈

• the kernel file it lives in: ./drivers/gpu/drm/msm/dp/dp_link.c 📁
• msm_dp_link_is_bit_depth_valid(9)
• msm_dp_link_parse_video_pattern_params(9)
• msm_dp_link_parse_link_training_params(9)
• msm_dp_link_parse_phy_test_params(9)
• msm_dp_link_is_video_audio_test_requested(9)
• msm_dp_link_process_link_training_request(9)
• msm_dp_link_process_phy_test_pattern_request(9)
• msm_dp_link_process_link_status_update(9)
• msm_dp_link_process_ds_port_status_change(9)
• msm_dp_link_process_request(9)

like, the whole friend group fr fr — every one of these is a sibling function hanging out in the same corner of ./drivers/gpu/drm/msm/dp 🎀

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sourced from ./drivers/gpu/drm/msm/dp, dated October 2026, bestie — that's the version receipts right there, keep 'em 📌💜

mwah, go read some DPCD bytes, ily, bye 🧚💖