ata_scsi_queuecmd(9)

📦 version 7.3.1, in nixpkgs unstable

💖 ata_scsi_queuecmd(9) — the Kernel API Manual glow-up 💖

okay bestie, so this is ata_scsi_queuecmd, straight out of section 9 of the kernel API manual, and it's basically the gluestick holding your SCSI vibes and your ATA hardware together. it's giving "matchmaker of the storage world" ngl 🎀

✨ NAME ✨

ata_scsi_queuecmd — Issue SCSI cdb to libata-managed device

like, you hand it a SCSI command and it gets it to a device that libata is babysitting. that's the whole eras tour. 🦋

🌸 SYNOPSIS 🌸

enum scsi_qc_status ata_scsi_queuecmd (struct Scsi_Host *shost , struct scsi_cmnd *cmd );

💅 ARGUMENTS 💅

  • shost — the SCSI host of the command you wanna send 💫 literally the host, that's it, that's the vibe.
  • cmd — the SCSI command you're sending. the actual main character here 👑

🌈 DESCRIPTION 🌈

okay so here's what's tea ☕:

in some cases, this function translates SCSI commands into ATA taskfiles, and queues those taskfiles up to be sent to the hardware. so it's a translator and a queue-runner. slay ✨

in other cases, this function simulates a SCSI device instead — it evaluates certain SCSI commands and responds to them itself. fake it till you make it, but make it legit 💅

put those two together and you get the overall effect: ATA and ATAPI devices appearing as SCSI devices. iykyk, that's the whole illusion, no cap 🎭

LOCKING: ATA host lock 🔒 (yes bestie, this lock is not optional, respect it fr fr)

🫶 RETURN 🫶

Return value from __ata_scsi_queuecmd if cmd can be queued, 0 otherwise.

so like — queueable? you get whatever __ata_scsi_queuecmd hands back. not queueable? you get a big fat 0. that's the deal 💀

🧚 SEE ALSO 🧚

Kernel file ./drivers/ata/libata-scsi.c — go read it, it's iconic ⭐

and now the full squad, nobody left behind, periodt:

and that's the page bestie 🫶 this lil drop came from ./drivers/ata and it's stamped October 2026 — write it down, cite it, live your truth 💜

📦 where this page comes from