ams_unmask_worker(9)

💖 NAME 💖

Okay bestie, you're looking at the Kernel API Manual entry for ams_unmask_worker — literally the “ams alarm interrupt unmask worker” ✨

🎀 SYNOPSIS 🎀

void ams_unmask_worker (struct work_struct *work );

🌸 ARGUMENTS 🌸

• work — the work to be done 🫶

🔥 DESCRIPTION 🔥

Okay so here's the vibe check: the ZynqMP threshold interrupts are level sensitive 👀. Since we can't make the threshold condition go away from within the interrupt handler, that means as soon as a threshold condition is present we'd be entering the interrupt handler again and again 😭.

To work around this, we mask all active threshold interrupts in the interrupt handler and start a timer ⏲️. In this timer we poll the interrupt status, and only if the interrupt is inactive do we unmask it again 💅.

No cap: the timer checks the interrupt status first, and the unmask only happens when the interrupt is inactive. That's the whole little workaround, periodt.

🦋 SEE ALSO 🦋

• Kernel file ./drivers/iio/adc/xilinx-ams.c
• struct ams(9)

That's the page, bestie — source/version: ./drivers/iio/adc, dated October 2026 💖✨