ad_sd_init(9)

💅 ad_sd_init(9) — the kernel API manual, bestie edition

okay so bestie, buckle up, we're diving into the Kernel API Manual today and honestly? it's giving "small function, big responsibilities." 🎀 this is ad_sd_init(9) and she's here to set up your ad_sigma_delta struct before literally anything else touches it. no cap.

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✨ NAME ✨

ad_sd_init — Initializes a ad_sigma_delta struct 🦋

like, that's her whole job and she does it well.

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✨ SYNOPSIS ✨

int ad_sd_init (struct ad_sigma_delta *sigma_delta , struct iio_dev
*indio_dev , struct spi_device *spi , const struct ad_sigma_delta_info
*info );

four arguments, no drama. ✨

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✨ ARGUMENTS ✨

• sigma_delta — The ad_sigma_delta device 💖 this is the star of the show, the main character, the struct getting initialized.
• indio_dev — The IIO device which the Sigma Delta device is used for 👑
• spi — The SPI device for the ad_sigma_delta device 🌸
• info — Device specific callbacks and options 🌈 this is where the personality lives, honestly.

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✨ DESCRIPTION ✨

bestie, listen to me: this function needs to be called before any other operations are performed on the ad_sigma_delta struct. 💀

not "ideally." not "if you feel like it." before. it's a vibe check for your struct — skip it and everything downstream is gonna be a mess. 😭

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✨ SEE ALSO ✨

Kernel file ./drivers/iio/adc/ad_sigma_delta.c — go read the source, iykyk 💜

• ad_sd_set_comm(9)
• ad_sd_write_reg(9)
• ad_sd_read_reg(9)
• ad_sd_reset(9)
• ad_sd_calibrate_all(9)
• ad_sigma_delta_single_conversion(9)
• ad_sd_validate_trigger(9)
• devm_ad_sd_setup_buffer_and_trigger(9)

the whole friend group, fr fr 🫶

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okay that's the whole page bestie, you ate that reading session up 💅 this icon lives under ./drivers/iio/adc, dated October 2026, and answers to ad_sd_init(9) — periodt. 💖✨