fsl_esai_set_dai_sysclk(9)

💅 fsl_esai_set_dai_sysclk(9) — from the Kernel API Manual 🎀

okay so bestie, buckle up, because today we're configuring the clock frequency of MCLK — that's HCKT/HCKR to you and me ✨ this little function lives its whole life in the kernel API manual and honestly? iconic. let's get into it 🦋

✨ SYNOPSIS ✨

int fsl_esai_set_dai_sysclk (struct snd_soc_dai *dai , int clk_id ,
       unsigned int freq , int dir );

that's the whole vibe check right there 💅 four arguments, one int coming back at you, no cap 🫶

🌸 ARGUMENTS 🌸

• dai — pointer to DAI 🫶 literally just a pointer, she's pointing at a DAI, that's her whole job
• clk_id — The clock source of HCKT/HCKR (Input from outside; output from inside, FSYS or EXTAL) 👑 so like, where the clock is coming from: outside input, inside output, FSYS, or EXTAL, iykyk
• freq — The required clock rate of HCKT/HCKR 🔥 the actual rate you want, unsigned int and everything
• dir — The clock direction of HCKT/HCKR 🦋 which way the clock is going, bestie

⭐ NOTE ⭐

If the direction is input, we do not care about clk_id 💀 like, genuinely do not care. input direction? clk_id is not invited to the conversation. periodt.

🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/fsl/fsl_esai.c
• struct fsl_esai_soc_data(9)
• struct fsl_esai(9)
• fsl_esai_divisor_cal(9)
• fsl_esai_set_bclk(9)

go read those, they're all in the same friend group fr fr 💖

sign-off time 🧚 this gorgeous little page comes to you from ./sound/soc/fsl, dated October 2026, and it's filed under fsl_esai_set_dai_sysclk(9) — main character energy, obviously 👑💜