cmd64x_sff_irq_check(9)

💖 NAME 💖

Okay bestie, this is cmd64x_sff_irq_check(9) from the Kernel API Manual — and its whole job is literally to check IDE interrupt ✨.

🦋 SYNOPSIS 🦋

bool cmd64x_sff_irq_check (struct ata_port *ap );

🎀 ARGUMENTS 🎀

• ap — the ATA interface. That's the thing you're handing over, no cap.

🌸 DESCRIPTION 🌸

So the check happens in the CFR/ARTTIM23 registers. That's the move: check IDE interrupt in CFR/ARTTIM23 registers. Periodt. 💅

👑 SEE ALSO 👑

Kernel file ./drivers/ata/pata_cmd64x.c — plus this iconic little squad of cross-references:

• cmd64x_set_timing(9)
• cmd64x_set_piomode(9)
• cmd64x_set_dmamode(9)
• cmd64x_sff_irq_clear(9)
• cmd648_sff_irq_check(9)
• cmd648_sff_irq_clear(9)
• cmd646r1_bmdma_stop(9)

mwah 💋 — source/version is ./drivers/ata, and this page is dated October 2026 🦋🎀