rt5682s_sel_asrc_clk_src(9)

✨ rt5682s_sel_asrc_clk_src ✨

okay so this is a page straight out of the Kernel API Manual, and honestly? it's giving "tiny function, big job" energy 💅 let's get into it bestie

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🌸 NAME 🌸

rt5682s_sel_asrc_clk_src — pick the ASRC clock source for a whole lil squad of filters 🎀

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🦋 SYNOPSIS 🦋

int rt5682s_sel_asrc_clk_src (struct snd_soc_component *component ,
unsigned int filter_mask , unsigned int clk_src );

that's the whole signature, no cap — that's literally it 🫶

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💖 ARGUMENTS 💖

• component — the SoC audio component device. yes, the whole device. main character energy fr 😭
• filter_mask — a mask of filters. it's a mask, bestie, so it's telling you which filters we're talking about 🎀
• clk_src — the clock source. literally the star of the show ⭐

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🔥 DESCRIPTION 🔥

so here's the tea ☕ the ASRC function exists for asynchronous MCLK and LRCK. and like, there's a whole reason for that: the RT5682S can only support standard 32fs or 64fs i2s format — that's it, that's the whole menu 🙈 so if you wanna run a special i2s clock format, like Intel's 100fs (100 * sampling rate), ASRC has to be enabled. no ASRC, no special format. periodt 💅

and what does ASRC actually do? it tracks the i2s clock and generates a corresponding system clock for the codec 🕰️✨ it's out here matching vibes in real time, iconic behaviour honestly.

so this function? it provides an API to select the clock source for a set of filters specified by the mask 👑 and — important part — the component driver will turn on ASRC for these filters if ASRC is selected as their clock source. that's the condition, don't forget the condition 🫶

ngl the mask is doing a lot of heavy lifting here — it's the thing that says "these filters, not all of them." respect the mask 🎀

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💜 SEE ALSO 💜

• Kernel file ./sound/soc/codecs/rt5682s.c
• rt5682s_headset_detect(9)
• set_dmic_clk(9)

go read those too, iykyk 🌈

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and that's the whole page bestie! 🧚 this lil gem lives in ./sound/soc/codecs and the docs are dated October 2026 — so yeah, very much current, very much slaying 💖 mwah, bye! 🌸