rt5682_sel_asrc_clk_src(9)

✨ rt5682_sel_asrc_clk_src ✨

okay bestie, so this is a page from the Kernel API Manual and it's literally about picking which clock source your ASRC filters run off. it's giving "small function, big responsibility" energy 💅

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🌸 NAME 🌸

rt5682_sel_asrc_clk_src — select ASRC clock source for a set of filters 💖

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🎀 SYNOPSIS 🎀

int rt5682_sel_asrc_clk_src (struct snd_soc_component *component ,
unsigned int filter_mask , unsigned int clk_src );

like, it returns an int, bestie. that's the whole vibe check right there ✨

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🦋 ARGUMENTS 🦋

• component — the SoC audio component device. it's the thing you're doing all this for 🫶
• filter_mask — mask of filters. yes queen, it's a mask, it does mask things 🌈
• clk_src — clock source. literally the clock source. the source of the clock. no cap 🕐

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💜 DESCRIPTION 💜

so here's the tea ☕ — the ASRC function exists for asynchronous MCLK and LRCK. keep that in mind, it matters.

also (and this is the part people always forget 😭), since the RT5682 can only support standard 32fs or 64fs i2s format, ASRC should be enabled to support special i2s clock formats such as Intel's 100fs (100 * sampling rate). like, the chip simply cannot do it otherwise, periodt.

what ASRC does is track the i2s clock and generate a corresponding system clock for the codec. main character energy fr fr 👑

<highlight>This function provides an API to select the clock source for a set of filters specified by the mask.</highlight> and then — the iconique part — the component driver will turn on ASRC for these filters if ASRC is selected as their clock source. so you pick the source, the driver handles the rest. slay 💅

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🔥 SEE ALSO 🔥

• Kernel file ./sound/soc/codecs/rt5682.c
• rt5682_headset_detect(9)
• set_dmic_clk(9)

go read those too, bestie, iykyk 📚✨

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aaaand that's the whole page 🎀 this lil beauty lives in ./sound/soc/codecs and the page itself is dated October 2026 — don't ask me how it's from the future, i don't make the rules 💀💖 bye bestie, go select some clock sources 🦋