STRUCT SDCA_DEVICE_DATA(9)

💖 struct sdca_device_data(9) 💖

okay bestie so real talk — this is a page straight out of the Kernel API Manual, and it's literally about struct sdca_device_data. it's the whole vibe container for everything SDCA-related. let's get into it ✨

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🎀 NAME 🎀

struct sdca_device_data — the structure that holds all the SDCA-related information. that's it, that's the whole job, and it does it slayfully 💅

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🌸 SYNOPSIS 🌸

struct sdca_device_data {
    u32 interface_revision;
    int num_functions;
    struct sdca_function_desc function[SDCA_MAX_FUNCTION_COUNT];
    struct acpi_table_swft *swft;
 };

like, look at that struct. gorgeous. no notes. 🫶

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🦋 Members 🦋

• interface_revision — this one's a u32, and it's the value read from the _DSD property. its whole main character purpose? checking for changes between silicon versions. lowkey a time capsule ngl 🕰️
• num_functions — an int holding the total number of supported SDCA functions. and listen, bestie — invalid/unsupported functions will be skipped, so it's not gonna trip over the weird ones 😌
• function — the array of function descriptors. it's typed struct sdca_function_desc and it's sized [SDCA_MAX_FUNCTION_COUNT], so it's giving organized, so it's giving iconic 👑
• swft — a pointer to the struct acpi_table_swft, if available. if it's not available? then it's just not, and that's fine 💀

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💜 SEE ALSO 💜

• Kernel file ./include/sound/sdca.h
• struct sdca_function_desc(9)

go read those too, iykyk 🌈

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and that's the whole page, bestie!! no cap, every single detail is right here 🌸

fr fr though — struct definitions and file paths go in exactly as written, so copy them character for character if you're typing them anywhere. don't be out here paraphrasing a pointer type 😭

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okay bye ily 💖 this masterpiece lives in ./include/sound, it's dated October 2026, and it's filed under struct sdca_device_data(9) — periodt. 🎀✨