asd_write_ocm_seg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 asd_write_ocm_seg(9) — Kernel API Manual, bestie edition ✨

okay so this is a page from the Kernel API Manual and it's about asd_write_ocm_seg, which literally writes a segment into on chip memory (OCM) 🎀 that's the whole vibe, no cap.

🌸 NAME 🌸

asd_write_ocm_seg — write an on chip memory (OCM) segment ✍️✨

🦋 SYNOPSIS 🦋

void asd_write_ocm_seg (struct asd_ha_struct *asd_ha , void *buffer ,
u32 offs , int size );

she's a void function, she takes four things, and honestly she's iconic for it 💅

🎀 ARGUMENTS 🎀

  • asd_ha — pointer to the host adapter structure 🫶 like, this is the adapter we're talking to, bestie
  • buffer — where to read the write data 📖 this is your source, the data comes from here
  • offs — offset into OCM to write to 📍 exactly where in that on chip memory we're dropping the goods
  • size — how many bytes to write 🔢 yes, actual byte count, keep track of her

💖 DESCRIPTION 💖

so here's the thing, and this part is a lil plot twist 😭 — this function returns the number of bytes not written. yep. the leftovers. the ones that didn't make it.

and it returns 0 on success 🎉 so a zero is genuinely the slay outcome here, don't panic when you see it.

fr fr, 0 = success. anything else = the count of bytes that got left on read 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/scsi/aic94xx/aic94xx_sds.c 🗂️ and the rest of the friend group:

✨ that's the whole page, mwah 💋 big sign-off energy: this one lives in ./drivers/scsi/aic94xx and it's dated October 2026 — go off, asd_write_ocm_seg(9) 👑💜

📦 where this page comes from