iio_validat..._mask_onehot(9)

okay bestie, welcome to the Kernel API Manual page for iio_validat..._mask_onehot(9) — and yes, the full function name in the NAME section is iio_validate_scan_mask_onehot. 💖

🌸 NAME 🌸

iio_validate_scan_mask_onehot — Validates that exactly one channel is selected. ✨

✨ SYNOPSIS ✨

here's the exact signature, no cap:

bool iio_validate_scan_mask_onehot (struct iio_dev *indio_dev , const
       unsigned long *mask );

🎀 ARGUMENTS 🎀

• indio_dev — the iio device. 🫶
• mask — scan mask to be checked. 👀

🦋 DESCRIPTION 🦋

so the vibe check here is simple: this returns true if exactly one bit is set in the scan mask, and false otherwise. 💅

It can be used for devices where only one channel can be active for sampling at a time — iykyk, one main character channel only. 👑

🌈 SEE ALSO 🌈

The kernel file is ./drivers/iio/industrialio-buffer.c, and here's the whole friend group:

• iio_buffer_read(9)
• iio_buffer_poll(9)
• iio_buffer_wakeup_poll(9)
• iio_scan_mask_set(9)
• struct iio_demux_table(9)
• iio_push_to_buffers(9)
• iio_push_to_buffers_with_ts_unaligned(9)
• iio_buffer_release(9)
• iio_buffer_get(9)
• iio_buffer_put(9)
• iio_device_attach_buffer(9)

💖 source/version: ./drivers/iio · date: October 2026 — that's the cute little footer energy, bestie. bye! 🎀✨