ata_sff_irq_on(9)

✨ NAME ✨

okay so bestie, this is ata_sff_irq_on(9) from the Kernel API Manual — and its whole vibe is: Enable interrupts on a port. 💅✨

---

🛠️ SYNOPSIS 🛠️

void ata_sff_irq_on (struct ata_port *ap );

It returns void, so no return value to obsess over — just the port pointer, periodt. 🎀

---

🎀 ARGUMENTS 🎀

• ap — the port on which interrupts are enabled. That's the whole argument, bestie. 🫶

---

💖 DESCRIPTION 💖

So here's the tea: it enables interrupts on a legacy IDE device using MMIO or PIO, waits for idle, and clears any pending interrupts. Lowkey a little wake-up-and-tidy situation, and honestly? Iconic. ✨

---

⚠️ NOTE ⚠️

🚨 Important, no cap: this may NOT be used as the sff_irq_on entry in ata_port_operations.

LOCKING: Inherited from caller. So wherever the call came from? That's where the locking comes from. 👑

---

🦋 SEE ALSO 🦋

Kernel file ./drivers/ata/libata-sff.c — plus the whole friend group. Every single one, because we do not skip the squad. 💜

• ata_sff_check_status(9), ata_sff_altstatus(9), ata_sff_irq_status(9), ata_sff_sync(9), ata_sff_pause(9), ata_sff_dma_pause(9), ata_sff_wait_ready(9), ata_sff_set_devctl(9)
• ata_sff_dev_select(9), ata_dev_select(9), ata_sff_tf_load(9), ata_sff_tf_read(9), ata_sff_exec_command(9), ata_tf_to_host(9), ata_sff_data_xfer(9), ata_sff_data_xfer32(9)
• ata_pio_sector(9), ata_pio_sectors(9), atapi_send_cdb(9), __atapi_pio_bytes(9), atapi_pio_bytes(9), ata_hsm_ok_in_wq(9), ata_hsm_qc_complete(9), ata_sff_hsm_move(9)
• ata_sff_qc_issue(9), ata_sff_qc_fill_rtf(9), ata_sff_port_intr(9), ata_sff_interrupt(9), ata_sff_lost_interrupt(9), ata_sff_freeze(9), ata_sff_thaw(9), ata_sff_prereset(9)
• ata_devchk(9), ata_sff_dev_classify(9), ata_sff_wait_after_reset(9), ata_sff_softreset(9), sata_sff_hardreset(9), ata_sff_postreset(9), ata_sff_drain_fifo(9), ata_sff_error_handler(9)
• ata_sff_std_ports(9), ata_pci_sff_init_host(9), ata_pci_sff_prepare_host(9), ata_pci_sff_activate_host(9), ata_pci_sff_init_one(9), ata_bmdma_fill_sg(9), ata_bmdma_fill_sg_dumb(9), ata_bmdma_qc_prep(9)
• ata_bmdma_dumb_qc_prep(9), ata_bmdma_qc_issue(9), ata_bmdma_port_intr(9), ata_bmdma_interrupt(9), ata_bmdma_error_handler(9), ata_bmdma_post_internal_cmd(9), ata_bmdma_irq_clear(9), ata_bmdma_setup(9)
• ata_bmdma_start(9), ata_bmdma_stop(9), ata_bmdma_status(9), ata_bmdma_port_start(9), ata_bmdma_port_start32(9), ata_pci_bmdma_clear_simplex(9), ata_pci_bmdma_init(9), ata_pci_bmdma_prepare_host(9)
• ata_pci_bmdma_init_one(9), ata_sff_port_init(9)

🫶 that's the whole page, bestie — from ./drivers/ata, October 2026, aka the source/version + date, and I'm obsessed. 💅