rt_sdca_index_write(9)

💖 rt_sdca_index_write(9) 💖

okay so welcome to the Kernel API Manual page for rt_sdca_index_write, bestie 💅 this one is short and sweet: it writes a value to a Realtek defined register. No cap, that's the whole vibe.

🌸 NAME 🌸

rt_sdca_index_write - Write a value to Realtek defined register.

✨ SYNOPSIS ✨

int rt_sdca_index_write (struct regmap *map , unsigned int nid ,
       unsigned int reg , unsigned int value );

🎀 ARGUMENTS 🎀

• map — map for setting. (yes, the map bestie 🗺️)
• nid — Realtek-defined ID.
• reg — register. literally the register 💅
• value — value. iconic.

🦋 DESCRIPTION 🦋

A value of zero will be returned on success, bestie — and a negative errno will be returned in error cases. That's it. That's the plot. ✨

🔥 SEE ALSO 🔥

Kernel file ./sound/soc/codecs/rt-sdw-common.c — and the related girlies are:

• rt_sdca_index_read(9)
• rt_sdca_index_update_bits(9)
• rt_sdca_btn_type(9)
• rt_sdca_headset_detect(9)
• rt_sdca_button_detect(9)

and that's the whole page, bestie 🫶 this cutie's source/version is ./sound/soc/codecs, and it's dated October 2026 — Kernel API Manual energy forever 💜