STRUCT YAS5XX(9)

✨ struct yas5xx — state container for the YAS5xx driver ✨

okay so bestie, this is a page from the Kernel API Manual (section 9, the kernel-API girlies) and it's literally just the struct that holds everything the YAS5xx driver needs to keep track of. it's giving "one big tote bag full of magnetometer essentials" 💅 no cap.

🎀 SYNOPSIS 🎀

struct yas5xx {
    struct device *dev;
    const struct yas5xx_chip_info *chip_info;
    unsigned int version;
    struct yas5xx_calibration calibration;
    s8 hard_offsets[3];
    struct iio_mount_matrix orientation;
    struct regmap *map;
    struct regulator_bulk_data regs[2];
    struct gpio_desc *reset;
    struct mutex lock;
    struct {
      s32 channels[4];
      aligned_s64 ts;
    } scan;
 };

like, yes, that's the whole vibe. now let's meet the members one by one 🫶

🦋 Members 🦋

• dev — the parent device pointer, aka who's your daddy device ✨
• chip_info — device-specific data and function pointers, so your chip knows its own lore 🔥
• version — the device version. iconic, numbered, gender-neutral.
• calibration — calibration settings straight out of the OTP storage 💖
• hard_offsets — offsets for each axis, measured with initcoil actuated. yes, all three axes, she's thorough 💅
• orientation — the mounting matrix, for when your axis is flipped etc 🌈
• map — regmap to access the YAX5xx registers over I2C (that spelling is what the page says, bestie, don't come for me 🙈)
• regs — the vdd and vddio power regulators 🍓
• reset — optional GPIO line used for handling RESET, the "have you tried turning it off and on again" wire ⭐
• lock — locks the magnetometer for exclusive use during a measurement. and lowkey this one matters: a measurement involves several register transactions, so the regmap lock is not enough on its own 😭 the result is that measurements get serialized in a first-come-first-serve manner. queue up, girlies 👑
• scan — naturally aligned measurements 💫

🌸 SEE ALSO 🌸

Kernel file ./drivers/iio/magnetometer/yamaha-yas530.c, struct yas5xx_chip_info(9), yas530_measure(9), yas537_measure(9), yas530_get_measure(9), yas537_get_measure(9), yas530_extract_calibration(9) 💜

ok that's the whole page, go read the actual driver now, mwah 💋

and that's a wrap, bestie!! this little beauty lives in ./drivers/iio/magnetometer and it's dated October 2026 — she's from the future, she's thriving, she's literally the main character of the IIO magnetometer directory 🧚✨💖