cros_ec_sensors_idx_to_reg(9)

💅 cros_ec_sensors_idx_to_reg(9) — the Kernel API Manual glow-up 🎀

okay so bestie, welcome to cros_ec_sensors_idx_to_reg, a lil function from the Kernel API Manual that does exactly one iconic thing: it takes an index and turns it into an offset in shared memory ✨ that's it, that's the whole vibe. no cap.

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✨ NAME ✨

cros_ec_sensors_idx_to_reg — convert index into offset in shared memory 🦋

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🌸 SYNOPSIS 🌸

unsigned int cros_ec_sensors_idx_to_reg (struct
       cros_ec_sensors_core_state *st , unsigned int idx );

like, yes, that signature is a whole two lines, she's long, she's serving, she's real 💅

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💖 ARGUMENTS 💖

• st — pointer to state information for device 🫶 literally the state struct, your main character, the source of truth
• idx — sensor index (should be element of enum sensor_index) 👑 key word should — it's giving "please use the enum," iykyk

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⭐ RETURN ⭐

address to read at 🔥 that's the whole payoff, bestie, an address

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🦋 SEE ALSO 🦋

kernel file ./drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c — that's where she lives, go visit 🏡

and the whole friend group of related functions, no one left out fr fr:

• cros_ec_sensors_core_init(9)
• cros_ec_sensors_core_register(9)
• cros_ec_motion_send_host_cmd(9)
• cros_ec_sensors_read_until_not_busy(9)
• cros_ec_sensors_read_data_unsafe(9)
• cros_ec_sensors_read_lpc(9)
• cros_ec_sensors_read_cmd(9)
• cros_ec_sensors_capture(9)
• cros_ec_sensors_core_read(9)
• cros_ec_sensors_core_read_avail(9)
• cros_ec_sensors_core_write(9)

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and that's the page, bestie 💜 she's sourced from ./drivers/iio/common/cros_ec_s..., dated October 2026, and she goes by cros_ec_sensors_idx_to_reg(9) — periodt 🌈🎀