snd_soc_dai_get_channel_map(9)

💖 snd_soc_dai_get_channel_map(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one is a function page, and honestly it's giving "short but iconic". We're talking about snd_soc_dai_get_channel_map, and no cap, it does exactly what it says on the tin: it gets you the DAI audio channel map. 🎀

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✨ NAME ✨

snd_soc_dai_get_channel_map — Get DAI audio channel map 🌸

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🦋 SYNOPSIS 🦋

int snd_soc_dai_get_channel_map (const struct snd_soc_dai *dai ,
unsigned int *tx_num , unsigned int *tx_slot , unsigned int *rx_num ,
unsigned int *rx_slot );

like, that's the whole signature, copy it exactly please, we do not freestyle here 💅

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🫶 ARGUMENTS 🫶

• dai — the DAI. yep. that's the whole description. it's the DAI, bestie, main character energy ✨
• tx_num — how many TX channels 🔥
• tx_slot — pointer to an array which imply the TX slot number channel 0~num-1 uses 💜
• rx_num — how many RX channels 🔥
• rx_slot — pointer to an array which imply the RX slot number channel 0~num-1 uses 💜

lowkey note: both tx_slot and rx_slot are described the exact same way in the original — "pointer to an array which imply the TX/RX slot number channel 0~num-1 uses". so yes, that phrasing is on purpose, we are keeping it fr fr 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/soc-dai.c
• snd_soc_dai_set_sysclk(9)
• snd_soc_dai_set_clkdiv(9)
• snd_soc_dai_set_pll(9)
• snd_soc_dai_set_bclk_ratio(9)
• snd_soc_dai_set_bclk_clk(9)
• snd_soc_dai_set_fmt(9)
• snd_soc_xlate_tdm_slot_mask(9)
• snd_soc_dai_set_tdm_slot(9)
• snd_soc_dai_set_tdm_idle(9)
• snd_soc_dai_set_channel_map(9)
• snd_soc_dai_set_tristate(9)
• snd_soc_dai_digital_mute(9)

like, it's a whole friend group of functions, and snd_soc_dai_get_channel_map is just the one that reads instead of writes — iykyk 👑

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and that's the page!! 🌟 this little gem lives at ./sound/soc and the version stamp says October 2026. kudos to whoever wrote it, mwah 💋 bye bestie, go map those channels 💖🎀🦋