nau8821_set_fll(9)

✨ nau8821_set_fll — the FLL glow-up for nau8821 💅

okay so bestie, welcome to the nau8821_set_fll(9) page 🎀 this is the Kernel API Manual moment, and it's all about configuring the FLL on the nau8821 codec. no cap, it's short but it's iconic.

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🌸 SYNOPSIS 🌸

int nau8821_set_fll (struct snd_soc_component *component , int pll_id ,
int source , unsigned int freq_in , unsigned int freq_out );

like, that's the whole vibe of the call right there — one int returned, five things going in 🫶

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🦋 ARGUMENTS 🦋

• component — the codec component, aka the main character here 👑
• pll_id — the PLL you're requesting, so specify which one you want
• source — the clock source, pick your fave
• freq_in — the frequency of the input clock source
• freq_out — lowkey the most important one: this must be 256*Fs if you want the best performance, bestie, don't skip this 💀

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💖 DESCRIPTION 💖

so the FLL function can select BCLK or MCLK as the input clock source — those are your two options, pick one, slay ✨

and then the return value situation:

• returns 0 if the parameters have been applied successfully 🎉
• returns a negative error code if not 😭 so like, check your returns, fr fr

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🧚 SEE ALSO 🧚

• Kernel file ./sound/soc/codecs/nau8821.c
• nau8821_calc_fll_param(9)
• nau8821_enable_jack_detect(9)

go read those too, iykyk 🌈

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okay that's the whole page, it's giving concise and efficient, no filler, just facts. periodt 💅

⭐ made with love from ./sound/soc/codecs, October 2026 edition — bye bestie, go configure that FLL 🦋💜