snd_ac97_write(9)

🎀 snd_ac97_write(9) — Kernel API Manual 🎀

okay so bestie, welcome to the snd_ac97_write(9) page. It’s giving tiny register write, big kernel energy. 💅✨

🌸 NAME 🌸

snd_ac97_write — write a value on the given register

✨ SYNOPSIS ✨

void snd_ac97_write (struct snd_ac97 *ac97 , unsigned short reg ,
       unsigned short value );

🦋 ARGUMENTS 🦋

• ac97 — the ac97 instance. That’s your codec bestie. 🫶
• reg — the register to change. The exact spot you’re poking. ✨
• value — the value to set. The new content, no cap. 💖

💖 DESCRIPTION 💖

So snd_ac97_write writes a value on the given register. Periodt. 💅 This will invoke the write callback directly after the register check — like, check first, callback immediately after. That’s the flow. ✨

This function doesn’t change the register cache, unlike #snd_ca97_write_cache. So use this only when you don’t want to reflect the change to the suspend/resume state. That’s the whole caveat, bestie — if you do want that reflection, this is not your girl. 😭

🔥 SEE ALSO 🔥

Kernel file ./sound/pci/ac97/ac97_codec.c — and the whole friend group:

• snd_ac97_read(9)
• snd_ac97_write_cache(9)
• snd_ac97_update(9)
• snd_ac97_update_bits(9)
• snd_ac97_get_short_name(9)
• snd_ac97_bus(9)
• snd_ac97_mixer(9)
• snd_ac97_update_power(9)
• snd_ac97_suspend(9)
• snd_ac97_resume(9)
• snd_ac97_tune_hardware(9)

🫶 cute sign-off: source/version ./sound/pci/ac97, date October 2026, page snd_ac97_write(9). bye bestie, go write that register responsibly 💋✨