mpi3mr_diag_buffer_for_type(9)

📦 version 7.3.1, in nixpkgs unstable

💜 mpi3mr_diag_buffer_for_type(9) — the kernel API manual, bestie edition 🎀

okay so real talk, this is a page from the Kernel API Manual and it's about one tiny-but-iconic little function called mpi3mr_diag_buffer_for_type. she's not doing the most, but she's doing her job and honestly? we respect her for it. ✨

✨ NAME ✨

mpi3mr_diag_buffer_for_type — returns buffer desc for type

like, that's literally the whole gig. she gives you the buffer descriptor for a type. no cap. 💅

🦋 SYNOPSIS 🦋

struct diag_buffer_desc * mpi3mr_diag_buffer_for_type (struct mpi3mr_ioc
*mrioc , u8 buf_type );

🌸 ARGUMENTS 🌸

  • mrioc — the adapter instance reference, aka your main character. you gotta hand her the adapter you care about. 👑
  • buf_type — the diagnostic buffer type. it's a u8, it's a vibe, it's how you tell her which diag buffer you're looking for. 🎯

💖 DESCRIPTION 💖

the way that this function works is genuinely so chill: it goes and identifies the matching diag descriptor from mrioc for the given diag buffer type. that's it. that's the whole thing. you show up with an adapter and a type, she finds the descriptor that matches, and you both move on with your lives. slay. 💅✨

🔥 RETURN 🔥

  • the diag buffer descriptor on success 🫶
  • NULL on failures 😭 (yes, you gotta check. always check. ngl, checking is the moment.)
fr fr, if you get NULL back that's not a cute surprise, that's a failure — handle it. 🙈

🌈 SEE ALSO 🌈

the kernel file lives right here, iykyk:

./drivers/scsi/mpi3mr/mpi3mr_app.c

and here's the whole friend group, every single one of them, no skips:

and that's the page, bestie 💫 this little manual lives in ./drivers/scsi/mpi3mr, dated October 2026, and it's filed under mpi3mr_diag_buffer_for_type(9) — go off, queen 👑💜

📦 where this page comes from