ata_host_alloc_pinfo(9)

okay so welcome to the Kernel API Manual, bestie — this page is ata_host_alloc_pinfo(9) and she is literally the main character of “alloc a host and init it with a port_info array.” no cap. 💅

🌸 NAME 🌸

ata_host_alloc_pinfo — alloc host and init with port_info array. that’s the whole vibe. ✨

✨ SYNOPSIS ✨

struct ata_host * ata_host_alloc_pinfo (struct device *dev , const
struct ata_port_info * const * ppi , int n_ports );

🎀 ARGUMENTS 🎀

• dev — the generic device this host is associated with. like, who is she attached to? this one. 🫶
• ppi — array of ATA port_info to initialize the host with. the lore provider, fr fr. 📚
• n_ports — number of ATA ports attached to this host. count ’em, bestie. 🔢

💅 DESCRIPTION 💅

Allocate an ATA host and initialize it with the info from ppi. 🦋

If it’s NULL terminated, ppi may contain fewer entries than n_ports. and the last entry will be used for the remaining ports — yes, she reuses the last one, that’s the rule. 👑

🔒 LOCKING 🔒

Inherited from the calling layer — and yes, it may sleep. so don’t be weird about it. 😴

🫶 RETURN 🫶

Allocate ATA host on success, NULL on failure. that’s it. that’s the return. 💖

🔥 SEE ALSO 🔥

Kernel file ./drivers/ata/libata-core.c, plus the whole bestie squad: 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), ata_is_40wire(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_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)

and that’s the page, bestie 🎀 this little gem lives in ./drivers/ata and it’s dated October 2026 — periodt. 💋