snd_hda_set_pin_ctl_cache(9)

💅 NAME 💅

ok so bestie, gather round: snd_hda_set_pin_ctl_cache — it sets a pin-control value, and it does it safely. that's the whole vibe. no cap. ✨

this one lives in the Kernel API Manual, so you already know it's giving main character energy in the sound subsystem. 🎀

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🌸 SYNOPSIS 🌸

int snd_hda_set_pin_ctl_cache (struct hda_codec *codec , hda_nid_t pin ,
unsigned int val );

it returns an int, just so you know what you're getting into 🫶

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🦋 ARGUMENTS 🦋

• codec — the codec instance. the actual little guy you're working on 💖
• pin — the pin NID whose control you wanna set. yes, the NID. the identifier. that one 🎯
• val — the pin-control value, and it's made of AC_PINCTL_* bits. iconic bit flags only 🔥

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💜 DESCRIPTION 💜

okay so literally: this is just like snd_hda_set_pin_ctl, except it also writes to the cache. that's it. that's the flex. it writes it and caches it, which is why "safely" is right there in the name. 💅

like, same behavior as its sibling, plus the cache write. periodt. ✨

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🌈 SEE ALSO 🌈

• the kernel file ./sound/hda/common/hda_local.h (go read it, iykyk 📖)
• snd_hda_set_pin_ctl(9) — the sibling that doesn't do the cache thing
• snd_hda_query_pin_caps(9) — for when you need to ask the pin what it's about
• snd_hda_override_pin_caps(9) — for when you need to tell the pin what it's about 👑

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lowkey reminder: every flag, every NID, every AC_PINCTL_* bit stays exactly as-is. i'm not out here inventing new kernel behavior, bestie 😭 this is just the vibe translation 🧚

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mwah 💋 this page came from ./sound/hda/common, dated October 2026, and it ate. no crumbs. 🍓👑