STRUCT ST_LSM6DSX_SETTINGS(9)

🌸 NAME 🌸

struct st_lsm6dsx_settings — the ST IMU sensor settings struct, aka the blueprint bestie 💖

So this page lives in the Kernel API Manual, and it's literally just describing every single field inside this one struct that tells the ST IMU driver how a given sensor wants to be treated. Think of it as the sensor's personality sheet ✨

🎀 SYNOPSIS 🎀

struct st_lsm6dsx_settings {
    struct st_lsm6dsx_reg reset;
    struct st_lsm6dsx_reg boot;
    struct st_lsm6dsx_reg bdu;
    struct {
      enum st_lsm6dsx_hw_id hw_id;
      const char *name;
      u8 wai;
    } id[ST_LSM6DSX_MAX_ID];
    struct {
      const struct iio_chan_spec *chan;
      int len;
    } channels[2];
    struct {
      struct st_lsm6dsx_reg irq1;
      struct st_lsm6dsx_reg irq2;
      u8 irq1_func;
      u8 irq2_func;
      struct st_lsm6dsx_reg lir;
      struct st_lsm6dsx_reg clear_on_read;
      struct st_lsm6dsx_reg hla;
      struct st_lsm6dsx_reg od;
    } irq_config;
    struct st_lsm6dsx_reg drdy_mask;
    struct st_lsm6dsx_odr_table_entry odr_table[2];
    struct st_lsm6dsx_samples_to_discard samples_to_discard[2];
    struct st_lsm6dsx_fs_table_entry fs_table[2];
    struct st_lsm6dsx_reg decimator[ST_LSM6DSX_ID_MAX];
    struct st_lsm6dsx_reg batch[2];
    struct st_lsm6dsx_fifo_ops fifo_ops;
    struct st_lsm6dsx_hw_ts_settings ts_settings;
    struct st_lsm6dsx_shub_settings shub_settings;
    struct st_lsm6dsx_event_settings event_settings;
    struct st_lsm6dsx_fusion_settings fusion_settings;
 };

Like, look at her. Nested structs inside nested structs. Main character energy fr fr 👑

💅 Members 💅

Ok so let's go field by field, no cap, nothing skipped:

• reset — the register address for reset. That's it, that's the whole vibe.
• boot — register address for boot. She wakes up and chooses herself 💅
• bdu — register address for Block Data Update. BDU said what it said.
• id — the whole list of hw id / device name combos that this driver configuration supports. It's an array of ST_LSM6DSX_MAX_ID entries, each carrying an hw_id, a name, and a wai. The roster of who's allowed in the group chat 🫶
• channels — the IIO channels the device supports. Two of them, each with a chan pointer and a len. Periodt.
• irq_config — all the interrupts-related registers. Inside her: irq1, irq2, irq1_func, irq2_func, lir, clear_on_read, hla, and od. Yeah she's got layers.
• drdy_mask — register info for the data-ready mask, which is addr + mask. Two-for-one deal ✨
• odr_table — the hardware sensors odr table (Hz + val). Two entries, because of course.
• samples_to_discard — number of samples to discard for filters settling time. Give the filters a sec to settle, bestie 😭
• fs_table — the hardware sensors gain table (gain + val). Also ×2.
• decimator — list of decimator register info (addr + mask), sized ST_LSM6DSX_ID_MAX.
• batch — list of FIFO batching register info (addr + mask). Two of these bad boys.
• fifo_ops — the sensor hw FIFO parameters.
• ts_settings — hw timer related settings ⏱️
• shub_settings — i2c controller related settings.
• event_settings — event settings, sitting right there in the struct.
• fusion_settings — fusion settings. Fusion. Iconic.

Lowkey note: the original page lists event_settings and fusion_settings in the struct but only spells out descriptions for the members above — so don't go inventing behaviour for them, iykyk 🙈

🦋 SEE ALSO 🦋

Go read the source, bestie, it's right here:

• Kernel file ./drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h struct st_lsm6dsx_fifo_ops(9), struct st_lsm6dsx_hw_ts_settings(9), struct st_lsm6dsx_shub_settings(9), struct st_lsm6dsx_ext_dev_settings(9), struct st_lsm6dsx_sensor(9), struct st_lsm6dsx_hw(9)

That's the whole page, bestie — no notes, ate and left no crumbs 👑 This cutie came out of ./drivers/iio/imu/st_lsm6dsx and she's stamped October 2026 (yes, struct st_lsm6dsx_settings(9), the one and only 💜). Go forth and configure your IMU 🎀🌸