lpfc_oas_vpt_store(9)

📦 version 7.3.1, in nixpkgs unstable

💖 lpfc_oas_vpt_store(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little sysfs store function and honestly? it ate. let's get into it 🫶

🌸 NAME 🌸

lpfc_oas_vpt_store — store the wwpn of the vport whose targets maybe get enabled for Optimized Access Storage (OAS)</> operations 💅

like, you hand it a wwpn, and the targets hanging off that vport maybe get switched on for OAS stuff. that's the whole vibe. 🦋

✨ SYNOPSIS ✨

ssize_t lpfc_oas_vpt_store (struct device *dev , struct device_attribute
*attr , const char *buf , size_t count );

no cap, that's the exact signature — don't come for me about the line break, that's just how it's written 😭

🎀 ARGUMENTS 🎀

  • dev — the class device that gets converted into a Scsi_host. that's the glow-up. 🦋
  • attr — the device attribute. it's literally not used. it's just there, main character energy by proximity only 🙈
  • buf — the buffer you're passing the info through. this is where the wwpn lives. 💌
  • count — the size of that data buffer. gotta know how much buffer you're buffering. ⭐

🔥 RETURN 🔥

  • -EINVAL — count is invalid, or the wwpn byte is invalid. nope, not today 💀
  • -EPERM — OAS is not supported by this hba. the hba said "not my era" 😭
  • value of count — success!! slay, you did it 👑✨
ok real talk, the negative values are error returns and the positive one is the win. read the number, know your fate. 💅

🌈 SEE ALSO 🌈

the whole friend group, fr fr. kernel file ./drivers/scsi/lpfc/lpfc_attr.c, plus:

like I said. the whole group chat. iykyk 💜

and that's the page!! this one lives in ./drivers/scsi/lpfc and it's dated October 2026, so mark your calendars bestie 🎀 go forth, store that wwpn, and remember — OAS is maybe enabled, not guaranteed, and that hba better support it or it's -EPERM for you 💀💖✨

📦 where this page comes from