STRUCT AD5449(9)

💅 struct ad5449(9) — like, the Kernel API Manual bestie 🎀

okay so this is a page from the Kernel API Manual, and it's all about struct ad5449 — driver instance specific data. yes we're doing kernel structs today, and honestly? it's giving main character energy ✨

🌸 NAME 🌸

struct ad5449 — driver instance specific data 🫶

✨ SYNOPSIS ✨

struct ad5449 {
    struct spi_device               *spi;
    const struct ad5449_chip_info   *chip_info;
    struct regulator_bulk_data      vref_reg[AD5449_MAX_VREFS];
    struct mutex                    lock;
    bool has_sdo;
    uint16_t dac_cache[AD5449_MAX_CHANNELS];
    __be16 data[2];
 };

like, that's the whole struct, no cap 💖

🦋 Members 🦋

• spi — the SPI device for this driver instance. it's literally the device, bestie 🙈
• chip_info — chip model specific constants, available modes etc. iykyk, every chip is a little different 💅
• vref_reg — vref supply regulators. regulators are the vibe check for your voltage, fr fr ⚡
• lock — lock to protect the data buffer during SPI ops. yes she's a mutex and yes she's protective, we stan 🔒
• has_sdo — whether the SDO line is connected. simple yes/no, iconic 👑
• dac_cache — Cache for the DAC values. keeping those values cozy in memory 🍓
• data — spi transfer buffers. the little landing pad for your transfers ✨

🔥 SEE ALSO 🔥

• Kernel file ./drivers/iio/dac/ad5449.c
• struct ad5449_chip_info(9)

aaaand that's the whole page 💜 go read the source, bestie, it's right there in ./drivers/iio/dac — this one's from October 2026, page struct ad5449(9), slay 🌈⭐