ENUM DPU_CRTC_CRC_SOURCE(9)

💅 enum dpu_crtc_crc_source(9) — like, the Kernel API Manual energy ✨

okay bestie, sit down, we're doing kernel enum lore today 🎀 this one's from the Kernel API Manual and it's literally called enum dpu_crtc_crc_source — yes that's a mouthful, yes it slays, no cap 💅

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🌸 NAME 🌸

enum dpu_crtc_crc_source — CRC source. that's it. that's the whole name. short, iconic, to the point 🫶

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✨ SYNOPSIS ✨

enum dpu_crtc_crc_source {
    DPU_CRTC_CRC_SOURCE_NONE ,
    DPU_CRTC_CRC_SOURCE_LAYER_MIXER ,
    DPU_CRTC_CRC_SOURCE_ENCODER ,
    DPU_CRTC_CRC_SOURCE_MAX ,
    DPU_CRTC_CRC_SOURCE_INVALID

};

look at her. five little constants, all lined up, all valid C, all gorgeous 🌈 copy them exactly, don't go "fixing" the spacing, i'm watching you 👀

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🦋 Constants 🦋

the main characters, in order, no skips:

• DPU_CRTC_CRC_SOURCE_NONE — no source set. like, none. empty. the void. the blank bio 🌸
• DPU_CRTC_CRC_SOURCE_LAYER_MIXER — CRC in layer mixer. that's where the CRC lives, babe ✨
• DPU_CRTC_CRC_SOURCE_ENCODER — CRC in encoder. different home, same CRC vibe check 💅
• DPU_CRTC_CRC_SOURCE_MAX — -- undescribed -- 😭 the manpage literally gave us nothing on this one. not me defending it, i'm just the messenger. i will NOT be inventing a description for it, that's a promise 🙈
• DPU_CRTC_CRC_SOURCE_INVALID — Invalid source. broken. dead. blocked. blocked and reported 💀

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👑 SEE ALSO 👑

go read these next, bestie, they're all in the same little friend group (the kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h enum era 🧚):

• enum dpu_crtc_client_type(9)
• enum dpu_crtc_smmu_state(9)
• enum dpu_crtc_smmu_state_transition_type(9)
• struct dpu_crtc_smmu_state_data(9)
• struct dpu_crtc_mixer(9)
• struct dpu_crtc_frame_event(9)
• struct dpu_crtc(9)
• struct dpu_crtc_state(9)
• dpu_crtc_frame_pending(9)
• dpu_crtc_get_client_type(9)

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💖 reminder that the source file lives at ./drivers/gpu/drm/msm/disp/dpu1 — that's the directory, don't @ me, it's what the page says 🫶

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mwah, that's the whole page, you ate it, periodt 🍓 and a lil cute sign-off for the footer: this beauty is dated October 2026, comes from ./drivers/gpu/drm/msm/disp/dpu1, and answers to enum dpu_crtc_crc_source(9) 💜 bye bestie, go read a struct next 🌟