dequeue_next_cmd(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dequeue_next_cmd — a whole Kernel API Manual moment (9) ✨

okay so bestie, welcome to the Kernel API Manual section 9 energy 🎀 this one's called dequeue_next_cmd, and it's literally about dequeuing a command for processing. the way that name just tells you what it does?? iconic. no notes. 🫶

🌸 SYNOPSIS 🌸

like, here's the whole vibe in one line:

struct scsi_cmnd * dequeue_next_cmd (struct Scsi_Host *instance );

that's it. that's the whole signature. copy it exactly, don't come for me about the space before the ) — it's canon 💅

🦋 ARGUMENTS 🦋

  • instance — the scsi host instance 🎀 that's your one and only input, bestie, and yes it's a struct Scsi_Host *

💖 DESCRIPTION 💖

so here's the tea ☕ — these commands that live on the autosense queue get priority. they get first dibs. main character energy only 👑 and why? because those commands need autosense, on account of they came back with a CHECK CONDITION result 😭 that's literally the whole reason.

then, if a command is found for a target that is not already busy, it hands you back a command pointer. slay. and if there isn't one? you get NULL. no cap, that's it, that's the function 🫡

ngl bestie, remember: busy target = no command for you 🙈 the function's gonna give you NULL and you just gotta deal.

🔥 SEE ALSO 🔥

okay so this is the part where I list every single one of these, because the kernel file ./drivers/scsi/NCR5380.c is out here with a whole friend group and we are NOT leaving anyone out 💜:

yeah that's nineteen of them. I counted. go read them all, iykyk 📚✨

and that's the page!! 💅 sourced from ./drivers/scsi, dated October 2026 — mwah, kissies, go forth and dequeue responsibly bestie 🍓🧚💜

📦 where this page comes from