ata_scsi_find_dev(9)

💅 ata_scsi_find_dev(9) 💅

okay so bestie, we’re cracking open the Kernel API Manual for ata_scsi_find_dev, and honestly? It’s giving “find your fave device in the ATA universe.” Let’s go. ✨

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✨ NAME ✨

ata_scsi_find_dev — lookup ata_device from scsi_cmnd

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🌸 SYNOPSIS 🌸

struct ata_device * ata_scsi_find_dev (struct ata_port *ap , const
struct scsi_device *scsidev );

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🎀 ARGUMENTS 🎀

• ap — the ATA port to which the device is attached. Like, that’s its home base, bestie.
• scsidev — the SCSI device from which we derive the ATA device. iykyk.

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🦋 DESCRIPTION 🦋

So you’ve got various information provided in struct scsi_cmnd? Cute. This function maps that onto an ATA bus, and then uses that mapping to determine which ata_device is associated with the SCSI command to be sent. That’s the whole vibe. 💖

🔒 LOCKING: spin_lock_irqsave(host lock) — yes, that’s the lock situation, and yes, you need to know it. No cap.

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🌈 RETURN 🌈

Associated ATA device, or NULL if not found. That’s it. If it’s not found, you get NULL — not a mystery, not a maybe, just NULL. 💀

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💖 SEE ALSO 💖

Kernel file ./drivers/ata/libata-scsi.c — and literally the whole iconic extended universe:

• ata_scsi_set_passthru_sense_fields(9)
• ata_std_bios_param(9)
• ata_scsi_unlock_native_capacity(9)
• ata_get_identity(9)
• ata_cmd_ioctl(9)
• ata_task_ioctl(9)
• ata_scsi_qc_new(9)
• ata_to_sense_error(9)
• ata_gen_ata_sense(9)
• ata_scsi_dma_need_drain(9)
• ata_scsi_sdev_init(9)
• ata_scsi_sdev_configure(9)
• ata_scsi_sdev_destroy(9)
• ata_scsi_start_stop_xlat(9)
• ata_scsi_flush_xlat(9)
• scsi_6_lba_len(9)
• scsi_10_lba_len(9)
• scsi_16_lba_len(9)
• scsi_dld(9)
• ata_scsi_verify_xlat(9)
• ata_scsi_rw_xlat(9)
• ata_scsi_translate(9)
• ata_scsi_rbuf_fill(9)
• ata_scsiop_inq_std(9)
• ata_scsiop_inq_00(9)
• ata_scsiop_inq_80(9)
• ata_scsiop_inq_83(9)
• ata_scsiop_inq_89(9)
• ata_dsm_trim_pages(9)
• ata_scsiop_inq_b0(9)
• ata_scsiop_inq_b1(9)
• ata_scsiop_inq_b2(9)
• ata_scsiop_inq_b6(9)
• ata_scsiop_inq_b9(9)
• ata_scsiop_inquiry(9)
• modecpy(9)
• ata_msense_caching(9)
• ata_msense_control(9)
• ata_msense_rw_recovery(9)
• ata_scsiop_mode_sense(9)
• ata_scsiop_read_cap(9)
• ata_scsiop_report_luns(9)
• atapi_xlat(9)
• ata_scsi_pass_thru(9)
• ata_format_dsm_trim_descr(9)
• ata_scsi_write_same_xlat(9)
• ata_scsiop_maint_in(9)
• ata_scsi_report_zones_complete(9)
• ata_mselect_caching(9)
• ata_mselect_control(9)
• ata_scsi_mode_select_xlat(9)
• ata_scsi_var_len_cdb_xlat(9)
• ata_get_xlat_func(9)
• ata_scsi_simulate(9)
• ata_scsi_queuecmd(9)
• ata_scsi_offline_dev(9)
• ata_scsi_remove_dev(9)
• ata_scsi_media_change_notify(9)
• ata_scsi_hotplug(9)
• ata_scsi_user_scan(9)
• ata_scsi_dev_rescan(9)

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mwah 💋 this lil page came from ./drivers/ata, dated October 2026 — and yeah, it’s still ata_scsi_find_dev(9), bestie. byeee 🫶✨