ENUM MTK_HDMI_DDC_V2_CMDS(9)

💅 enum mtk_hdmi_ddc_v2_cmds(9) 💅

okay bestie, welcome to the Kernel API Manual — yes that's the manual name, and yes this page is a whole ~serve~. we're talking about a little enum that holds all the DDC_CMD register commands for the MediaTek HDMI DDC v2 situation. it's giving "small header file, big responsibilities" and honestly? obsessed. 🎀

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✨ NAME ✨

enum mtk_hdmi_ddc_v2_cmds — the DDC_CMD register commands, all lined up like they're waiting for the group photo 📸

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🦋 SYNOPSIS 🦋

enum mtk_hdmi_ddc_v2_cmds {
    DDC_CMD_READ_NOACK ,
    DDC_CMD_READ ,
    DDC_CMD_SEQ_READ_NOACK ,
    DDC_CMD_SEQ_READ ,
    DDC_CMD_ENH_READ_NOACK ,
    DDC_CMD_ENH_READ ,
    DDC_CMD_SEQ_WRITE_NOACK ,
    DDC_CMD_SEQ_WRITE ,
    DDC_CMD_CLEAR_FIFO ,
    DDC_CMD_CLOCK_SCL ,
    DDC_CMD_ABORT_XFER

};

like. look at that list. eleven constants, zero filler, all main character energy 👑

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🌈 Constants 🌈

okay so here's the roll call, and yes i'm gonna introduce each one because they all deserve it 🫶

• DDC_CMD_READ_NOACK — current address read, but with no ACK on the last byte. she simply does not acknowledge. 💅
• DDC_CMD_READ — current address read, and this one does ACK on the last byte. polite. well-mannered. we love her. ✨
• DDC_CMD_SEQ_READ_NOACK — sequential read, going full no-ACK on the last byte 😭
• DDC_CMD_SEQ_READ — sequential read, ACK on the last byte, thriving, hydrated 🧚
• DDC_CMD_ENH_READ_NOACK — enhanced read, no ACK on the last byte. enhanced in what way? the manpage doesn't say and honestly i respect the mystery 🙈
• DDC_CMD_ENH_READ — enhanced read, ACK on the last byte, a true icon 🔥
• DDC_CMD_SEQ_WRITE_NOACK — sequential write that straight-up ignores the ACK on the last byte. bold. reckless? maybe. iconic? absolutely. 💀
• DDC_CMD_SEQ_WRITE — sequential write that requires an ACK on the last byte. she has standards. periodt. 👑
• DDC_CMD_CLEAR_FIFO — clears the DDC I2C FIFO. fresh start, clean slate, new me energy 🧹
• DDC_CMD_CLOCK_SCL — starts clocking the DDC I2C SCL. get it moving, get it going ⏰
• DDC_CMD_ABORT_XFER — aborts the DDC I2C transaction. we're done here. bye bestie 👋

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🌸 SEE ALSO 🌸

• the kernel file ./drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h — that's where the real lore lives, go read it iykyk 📖

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quick vibe check: every command up there is exactly what it says on the tin, no embellishment, no cap — if you need the actual register behaviour, the header is the source of truth, not me 💖

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that's the whole page bestie!! this one came from ./drivers/gpu/drm/mediatek and the date on it is October 2026, so yeah — future-coded documentation, we love to see it 🦋✨ mwah, go forth and DDC 🎀