ENUM HDA_BUS_ML_LINK_TYPE(9)

✨ enum hda_bus_ml_link_type ✨

okay so this is from the Kernel API Manual bestie, and it's literally just a lil enum that tells you what kind of link an mlink is 💅 it's the link type used by SOF link DMA allocator constraints — and yeah, if you wanna see the whole situation it lives alongside struct sof_intel_hda_dev (iykyk) 🫶

🌸 NAME 🌸

enum hda_bus_ml_link_type — the mlink link type, used by SOF link DMA allocator constraints (peep struct sof_intel_hda_dev) ✨

🎀 SYNOPSIS 🎀

enum hda_bus_ml_link_type {
    HDA_BUS_ML_LINK_HDA ,
    HDA_BUS_ML_LINK_SDW ,
    HDA_BUS_ML_LINK_UAOL ,
    HDA_BUS_ML_LINK_OTHER

};

like, that's the whole thing. four little constants, all iconic, all doing their job 👑

🦋 Constants 🦋

• HDA_BUS_ML_LINK_HDA — the non-alt link, bestie. think HDA codec or iDisp 💖 the main character, no cap.
• HDA_BUS_ML_LINK_SDW — alt link, and it's SoundWire 🌈 slay.
• HDA_BUS_ML_LINK_UAOL — alt link, USB Audio Offload 🎧 yes it ate.
• HDA_BUS_ML_LINK_OTHER — alt link, SSP or DMIC 🍓 the catch-all bestie, holding it down.

ngl these four are the whole vibe check — every mlink is exactly one of these, no extras, no surprises 💀

🔥 SEE ALSO 🔥

• Kernel file ./include/sound/hda-mlink.h ⭐ go read it, it's giving source of truth 💜

okay that's the tea ☕ this page came from ./include/sound and it's dated October 2026, so like — future vibes only 🧚✨ mwah, go forth and allocate your DMA responsibly bestie 💅🎀