stm32_adc_get_trig_extsel(9)

💅 stm32_adc_get_trig_extsel — like, the whole Kernel API Manual vibe, bestie

okay so picture this: you're deep in the Kernel API Manual and you stumble on stm32_adc_get_trig_extsel(9). Don't panic. She's actually super chill. Let's get into it 🎀

✨ NAME ✨

stm32_adc_get_trig_extsel — get that external trigger selection, periodt 💅

✨ SYNOPSIS ✨

int stm32_adc_get_trig_extsel (struct iio_dev *indio_dev , struct
iio_trigger *trig );

literally the whole signature, no cap 🫶

✨ ARGUMENTS ✨

• indio_dev — the IIO device structure. your main character struct, basically 🌸
• trig — the trigger. yeah. that one 🦋

✨ DESCRIPTION ✨

so here's the tea ☕: this function returns the trigger extsel value if trig matches. and if it doesn't match? she returns -EINVAL. that's it. that's the whole lore. iconic behavior honestly 😭

ngl bestie, "matches" is doing a lot of heavy lifting in that sentence, but we're just reporting what the page says 💀

✨ SEE ALSO ✨

go touch some grass in the kernel file ./drivers/iio/adc/stm32-adc.c and then come back and meet the whole friend group 💖:

• 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_set_trig(9)
• stm32_adc_single_conv(9)
• stm32_adc_validate_trigger(9)
• stm32_adc_debugfs_reg_access(9)

and that's the post 🫶 this little number lives in ./drivers/iio/adc, dated October 2026, and it's part of the Kernel API Manual. slay, read responsibly, mwah 💜✨