libnvme_mi_mi_pda_write(9)

📦 version 3.2, in arch rolling

💖 libnvme_mi_mi_pda_write(9) 💖

okay bestie, welcome to the libnvme API manual — specifically the page for libnvme_mi_mi_pda_write(9), aka the glow-up where you actually write stuff into the NVMe-MI Persistent Data Area. yes, the PDA. it's giving "finally, my turn to talk" energy ✨

🌸 NAME 🌸

libnvme_mi_mi_pda_write — Write the NVMe-MI Persistent Data Area (PDA)

like, literally the function that writes to the PDA. that's the whole vibe. 🎀

🦋 SYNOPSIS 🦋

int libnvme_mi_mi_pda_write (struct libnvme_mi_ep *ep , enum
nvme_mi_pda_dformat dformat , __u32 dofst , __u32 dlen , void *data ,
size_t data_len );

six arguments, one int coming back at you. no cap, that's the whole signature. 📝

⭐ ARGUMENTS ⭐

  • ep — the endpoint you're using to talk MI. your little communication portal, your main character connection to the device 🫶
  • dformat — the data format to use for dofst and dlen, see enum nvme_mi_pda_dformat. yes, it decides what the units mean. very "context is everything" of it 💅
  • dofst — the starting offset into the PDA where the writing begins, measured in units of dformat. so if you don't know your dformat, you don't know your offset. iykyk 🌈
  • dlen — how long the chunk you're writing is, also in units of dformat, starting at dofst. the length-sibling of dofst, basically 👑
  • data — the actual data going into the PDA. the payload. the moment. 🔥
  • data_len — the length of data. not to be confused with dlen up there — different measurements, different jobs, both iconic 💜

🧚 DESCRIPTION 🧚

Performs an NVMe-MI PDA Write command.

that's it. that's the move. you call it and it does the PDA Write command, as one treats. ✨

🍓 RETURN 🍓

You get back the nvme command status if a response was received (see enum nvme_status_field), or a negative error code otherwise. so: status on a real response, negative number when things go sideways. either way, check it bestie 😭

no response from the device? that's the "negative error code otherwise" branch, fr fr. don't sleep on checking the return value.

and that's the page! brought to you by the libnvme API manual, function libnvme_mi_mi_pda_write, dated October 2026. go write that Persistent Data Area, you absolute icon 💅💖🌸

slay responsibly ✨

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