ata_is_40wire(9)

✨ ata_is_40wire(9) ✨

okay so welcome to the Kernel API Manual, bestie — this is the page for ata_is_40wire(9), and yes the manual name is literally right there in the function name because we're efficient like that 💅.

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🌸 NAME 🌸

• ata_is_40wire — check drive side detection. That's the whole vibe, and it's giving “drive-side detection check” energy 🫶

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✨ SYNOPSIS ✨

int ata_is_40wire (struct ata_device *dev );

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🎀 ARGUMENTS 🎀

• dev — device. The one and only argument, bestie; it's the device you're handing over. 🦋

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💖 DESCRIPTION 💖

It performs drive side detection decoding, and it does that specifically to allow for device vendors who can't follow the documentation. 😭 fr fr, it's the little decoding moment that handles the vendors being chaotic.

No cap, that's the whole description. Short, sweet, and lowkey iconic. 💀✨

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👑 SEE ALSO 👑

Okay bestie, the link party starts with the Kernel file ./drivers/ata/libata-core.c, and then it's this entire crew — all of these are literally (9) references:

• ata_link_next(9), ata_dev_next(9), ata_dev_phys_link(9), ata_force_cbl(9), ata_force_pflags(9), ata_force_link_limits(9), ata_force_xfermask(9), ata_force_quirks(9), atapi_cmd_type(9), ata_set_rwcmd_protocol(9)
• ata_tf_read_block(9), ata_build_rw_tf(9), ata_pack_xfermask(9), ata_unpack_xfermask(9), ata_xfer_mask2mode(9), ata_xfer_mode2mask(9), ata_xfer_mode2shift(9), ata_mode_string(9), ata_dev_classify(9), ata_id_string(9), ata_id_c_string(9), ata_read_native_max_address(9)
• ata_set_max_sectors(9), ata_hpa_resize(9), ata_dump_id(9), ata_id_xfermask(9), ata_exec_internal(9), ata_pio_need_iordy(9), ata_pio_mask_no_iordy(9), ata_do_dev_read_id(9), ata_dev_read_id(9), ata_dev_power_set_standby(9), ata_dev_power_set_active(9), ata_read_log_page(9)
• ata_dev_configure(9), ata_cable_40wire(9), ata_cable_80wire(9), ata_cable_unknown(9), ata_cable_ignore(9), ata_cable_sata(9), sata_print_link_status(9), ata_dev_pair(9), ata_timing_cycle2mode(9), ata_down_xfermask_limit(9), ata_set_mode(9), ata_wait_ready(9)
• ata_wait_after_reset(9), ata_std_prereset(9), ata_std_postreset(9), ata_dev_same_device(9), ata_dev_reread_id(9), ata_dev_revalidate(9), cable_is_40wire(9), ata_dev_xfermask(9), ata_dev_set_xfermode(9), ata_dev_set_feature(9), ata_dev_init_params(9), atapi_check_dma(9)
• ata_std_qc_defer(9), ata_sg_init(9), ata_sg_clean(9), ata_sg_setup(9), swap_buf_le16(9), ata_qc_free(9), ata_qc_complete(9), ata_qc_get_active(9), ata_qc_issue(9), ata_phys_link_online(9), ata_phys_link_offline(9), ata_link_online(9)
• ata_link_offline(9), ata_host_suspend(9), ata_host_resume(9), ata_dev_init(9), ata_link_init(9), sata_link_init_spd(9), ata_port_alloc(9), ata_host_alloc(9), ata_host_alloc_pinfo(9), ata_finalize_port_ops(9), ata_host_start(9), ata_host_init(9)
• ata_host_register(9), ata_host_activate(9), ata_dev_free_resources(9), ata_port_detach(9), ata_host_detach(9), ata_pci_remove_one(9), ata_platform_remove_one(9), ata_msleep(9), ata_wait_register(9)

Signed with sparkles from the source/version corner ./drivers/ata, dated October 2026, closing out the ata_is_40wire(9) page — mwah 💋✨