ufshcd_issue_tm_cmd(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ufshcd_issue_tm_cmd(9) — like, the kernel API manual bestie ✨

okay so this whole page is from the Kernel API Manual, and it's about ufshcd_issue_tm_cmd — the lil function that issues task management commands to controller. that's the NAME section, we been knew 🎀

✨ SYNOPSIS ✨

int ufshcd_issue_tm_cmd (struct ufs_hba *hba , int lun_id , int task_id
, u8 tm_function , u8 *tm_response );

literally the whole signature, no cap. five args, one int coming back at you 🫶

🌸 ARGUMENTS 🌸

so here's the cast of characters, and yes every single one matters:

  • hba — per adapter instance. like, the adapter we're talking to, bestie 💖
  • lun_id — LUN ID to which TM command is sent. that's where it's headed 📍
  • task_id — task ID to which the TM command is applicable. the specific task in question, iykyk
  • tm_function — task management function opcode. the actual what are we doing byte 🦋
  • tm_response — task management service response return value. where the answer gets written back 👑

🎀 RETURN 🎀

non-zero value on error, zero on success. that's it. that's the whole vibe check — 0 is the slay, anything else is a 💀

fr fr, check it. zero = good, non-zero = something went sideways.

🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/ufs/core/ufshcd.c — and it's giving huge friend group, because look at all these siblings omg 😭

that's the whole thing, bestie. nothing skipped, nothing added, and honestly? iconic. 💅✨

mwah 💖 this page came from ./drivers/ufs/core, dated October 2026, and it's titled ufshcd_issue_tm_cmd(9) — go forth and issue those task management commands responsibly, ily 🫶🎀

📦 where this page comes from