sdca_regmap_count_constants(9)

✨ sdca_regmap_count_constants ✨

okay so bestie, this one lives in the Kernel API Manual (section 9, the kernel-functions girlies 💅) and it's literally just here to count stuff for you. no cap.

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🌸 NAME 🌸

sdca_regmap_count_constants — counts the number of DisCo constant Controls 💖

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🎀 SYNOPSIS 🎀

int sdca_regmap_count_constants (struct device *dev , struct
       sdca_function_data *function );

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🦋 ARGUMENTS 🦋

• dev — a pointer to the device, bestie. 🫶
• function — a pointer to the Function information, which is the thing getting parsed. 🔍

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💫 DESCRIPTION 💫

So this function returns the number of DisCo constant Controls that are present in a function. iconic behaviour honestly.

typically you'd use this information to populate the regmap defaults array — which is the slay part, because it lets drivers access the values of DisCo constants exactly like they would any other physical register. same energy, no special-casing. ✨

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🔥 RETURN 🔥

it returns the number of DisCo constant controls… or a negative error code on failure 😭 (yeah, check that return value, don't be that girl).

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👑 SEE ALSO 👑

kernel file ./sound/soc/sdca/sdca_regmap.c plus the whole friend group:

• sdca_regmap_readable(9)
• sdca_regmap_writeable(9)
• sdca_regmap_volatile(9)
• sdca_regmap_deferrable(9)
• sdca_regmap_mbq_size(9)
• sdca_regmap_populate_constants(9)
• sdca_regmap_write_defaults(9)

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this page is straight from ./sound/soc/sdca, dated October 2026 — and yes, it's sdca_regmap_count_constants(9) the whole way through. periodt. 💜

go count those constants, bestie, you're gonna ate 🌈⭐💅