ata_sff_check_status(9)

💅 ata_sff_check_status(9) 💅

okay so this is a page straight out of the Kernel API Manual (yes, the Kernel API Manual, we're being fancy today ✨), and it's all about one tiny little function that does a surprisingly important job. bestie, let me tell you about ata_sff_check_status. 🎀

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🌸 NAME 🌸

ata_sff_check_status — read the device status reg and clear the interrupt, all in one slay of a call 💅

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✨ SYNOPSIS ✨

u8 ata_sff_check_status (struct ata_port *ap );

that's it. that's the whole vibe. one arg, returns a u8. iconic. 👑

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🦋 ARGUMENTS 🦋

• ap — the port where the device is 💖 like, which port are we checking on. that's the one.

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🌈 DESCRIPTION 🌈

so what does it actually do? it reads the ATA taskfile status register for the currently-selected device and returns its value. and then — the part that's giving main character energy — it also clears pending interrupts from this device. two jobs, one function. we love a multitasker. 🫶

🔒 LOCKING 🔒

LOCKING: inherited from caller. no cap. this function does not bring its own locks to the party — it just uses whatever the caller already set up. so be a good bestie and make sure you're holding the right lock before you call it, or it's giving chaos. 💀

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⭐ SEE ALSO ⭐

buckle up, this list is long and honestly kind of iconic. it's the whole ./drivers/ata/libata-sff.c family reunion 🧚 — every single one of these:

• Kernel file ./drivers/ata/libata-sff.c
• 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_irq_on(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)

like… 60-something references?? she really said "know the whole squad or don't know me". iykyk. 🍓

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and that's the page, bestie!! 🎀 this one lives in ./drivers/ata, dated October 2026, and it's page ata_sff_check_status(9) of the Kernel API Manual — go forth and check those status registers responsibly 💜💫