stm32_adc_single_conv(9)

💖 stm32_adc_single_conv 💖

okay so bestie, welcome to the Kernel API Manual, section 9 — yes we're in the big-kid kernel-functions section, iykyk ✨ this one's all about stm32_adc_single_conv(9) and honestly? she's a lil workhorse 🫶

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✨ NAME ✨

stm32_adc_single_conv — literally performs a single conversion 💅 that's it, that's the whole vibe

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🌸 SYNOPSIS 🌸

int stm32_adc_single_conv (struct iio_dev *indio_dev , const struct
       iio_chan_spec *chan , int *res );

no cap, that's the signature — copy it exactly pls, don't get creative 🙈

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🦋 ARGUMENTS 🦋

• indio_dev — the IIO device, aka the main character of this whole operation 👑
• chan — the IIO channel we're pointing at, like "this one, this is the one" 🎯
• res — where the conversion result lands, the little souvenir from the trip ✨

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🎀 DESCRIPTION 🎀

so the function does a single conversion on a given channel, and the way it goes about it is honestly kind of iconic:

• Apply sampling time settings ⏱️ (gotta set the timing first, be respectful)
• Program sequencer with one channel (e.g. in SQ1 with len = 1) — just the one, one channel, minimal, very demure ✨
• Use SW trigger 💅 software trigger only, we're not waiting around for hardware
• Start conversion, then wait for interrupt completion. 🫶 start it, then sit there and wait for that interrupt like you're waiting for a text back 😭

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💜 SEE ALSO 💜

the whole friend group, fr fr 💖

Kernel file ./drivers/iio/adc/stm32-adc.c

• struct stm32_adc_ic(9)
• struct stm32_adc_trig_info(9)
• struct stm32_adc_calib(9)
• struct stm32_adc_regs(9)
• struct stm32_adc_vrefint(9)
• struct stm32_adc_regspec(9)
• struct stm32_adc_cfg(9)
• struct stm32_adc(9)
• struct stm32_adc_info(9)
• stm32_adc_conv_irq_enable(9)
• stm32_adc_conv_irq_disable(9)
• stm32f4_adc_start_conv(9)
• stm32h7_adc_read_selfcalib(9)
• stm32h7_adc_restore_selfcalib(9)
• stm32h7_adc_selfcalib(9)
• stm32h7_adc_check_selfcalib(9)
• stm32h7_adc_prepare(9)
• stm32_adc_conf_scan_seq(9)
• stm32_adc_get_trig_extsel(9)
• stm32_adc_set_trig(9)
• stm32_adc_validate_trigger(9)
• stm32_adc_debugfs_reg_access(9)

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💀 reminder bestie: this is a kernel manpage, so if you're here you're probably deep in the ADC driver and it's giving "debugging at 2am" energy. stay hydrated 💧

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and that's the page!! sign-off time 🎀 this one lives in ./drivers/iio/adc, dated October 2026, and the whole thing is filed under stm32_adc_single_conv(9) — slay, go read the other 22 functions now, mwah 🫶💖✨