typec_altmode_notify(9)

💅 typec_altmode_notify(9) 💅

okay so bestie, welcome to the kernel API manual page for typec_altmode_notify — this one lives in the Linux kernel docs, and honestly? she's the group chat between your OS and the alternate mode drivers. iconic behavior fr fr.

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✨ NAME ✨

typec_altmode_notify — the literal communication line between the OS and the alternate mode driver 🫶

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🌸 SYNOPSIS 🌸

int typec_altmode_notify (struct typec_altmode *adev , unsigned long conf , void *data );

that's the whole vibe. she takes three things and returns an int. no notes. 💅

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🎀 ARGUMENTS 🎀

• adev — the handle to the alternate mode. like, her little name tag so everyone knows which alt mode we're talking about 🏷️
• conf — an alternate mode specific configuration value. yes, "specific" — every SVID does its own thing, no cap 💫
• data — alternate mode specific data. also SVID-flavored, also doing the most 🌈

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🦋 DESCRIPTION 🦋

okay so the primary purpose of this function? it's so the alternate mode drivers can spill the tea about which pin configuration has been negotiated with the partner. like, "hey bestie, we settled on this one" 💅 that info then gets used for stuff like configuring the muxes. very main character energy.

and bestie, it goes both ways 👀 communication to the other direction is also possible — low level device drivers can send notifications back up to the alternate mode drivers too. it's giving mutual effort. it's giving healthy relationship.

heads up though: the actual communication will be specific for every SVID. so don't come at her expecting one universal format, because that is not the vibe 🙈

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🔥 SEE ALSO 🔥

• the kernel file ./drivers/usb/typec/bus.c (that's where she lives, go say hi 💖)
• typec_altmode_enter(9)
• typec_altmode_exit(9)
• typec_altmode_attention(9)
• typec_altmode_vdm(9)
• typec_cable_altmode_enter(9)
• typec_cable_altmode_exit(9)
• typec_cable_altmode_vdm(9)
• typec_altmode_get_plug(9)
• typec_altmode_put_plug(9)
• typec_match_altmode(9)

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and that's the page, bestie 💜 she's filed under ./drivers/usb/typec, dated October 2026, and she ated, periodt. go read the source, mwah 🧚✨