adxl345_set_measure_en(9)

✨ adxl345_set_measure_en ✨

okay bestie, so this is a kernel API function from the adxl345 driver manual, and it's literally the on/off switch for measuring. like, the whole vibe check for whether your accelerometer is actually accelerometer-ing. let's get into it 💅

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🌸 SYNOPSIS 🌸

int adxl345_set_measure_en(struct adxl345_state *st, bool en);

that's the whole signature, periodt. returns an int, takes a state pointer and a boolean. iconic, honestly.

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🎀 ARGUMENTS 🎀

• st — the device data. this is your main character struct, the struct adxl345_state * that holds all the tea about the device 🫶
• en — enable measurements, else standby mode. so like, true means "go go go measure stuff", false means "bestie go to sleep" 😴

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💖 DESCRIPTION 💖

so here's the lowkey important part: for lowest power operation, you can use standby mode. and when you're in standby mode, current consumption is supposed to be reduced to 0.1uA (typical) — that's tiny, like, microscopic energy usage, we love a power-efficient queen 👑

in this mode, no measurements are made. none. zero. it's giving "vacation mode". but here's the slay detail: placing the device into standby mode preserves the contents of FIFO. so you don't lose your data, you just pause. that's the whole point, and it ate 🔥

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⭐ RETURN ⭐

returns 0 if successful, or a negative error value. so if you get a negative number back, that's the universe (or the kernel) telling you something went wrong. no cap 🙈

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🦋 SEE ALSO 🦋

• kernel file ./drivers/iio/accel/adxl345_core.c — this is where the magic lives
• adxl345_set_inact_time(9)
• adxl345_is_act_inact_ac(9)
• adxl345_set_act_inact_ac(9)
• adxl345_get_samples(9)
• adxl345_fifo_transfer(9)
• adxl345_fifo_reset(9)
• adxl345_irq_handler(9)
• adxl345_core_probe(9)

like, go read those too if you wanna be a true adxl345 scholar 💜

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okay and finally, the cute little sign-off: this manual page lives in ./drivers/iio/accel, it's dated October 2026, and the version is the same as the title up there: adxl345_set_measure_en(9). that's the whole thing bestie, you're now a certified expert on toggling measurement mode 🎀✨💖