pci_write_vpd(9)

✨ pci_write_vpd(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for pci_write_vpd — and yes that (9) means it's a kernel-internal thing, iykyk 💅

🌸 NAME 🌸

pci_write_vpd — write an entry to Vital Product Data 🫶

🦋 SYNOPSIS 🦋

ssize_t pci_write_vpd (struct pci_dev *dev , loff_t pos , size_t count ,
       const void *buf );

🎀 ARGUMENTS 🎀

• dev — the PCI device struct, like the actual device bestie, the main character of this whole operation 👑
• pos — the offset in VPD space, i.e. where in there you're writing, no cap 📍
• count — how many bytes you're writing, like literally the number of them 🍓
• buf — the buffer holding the write data, your payload, the whole reason we're here 💖

🔥 SEE ALSO 🔥

• Kernel file ./drivers/pci/vpd.c
• pci_vpd_size(9)
• pci_read_vpd(9)

ngl bestie, if you're writing you probably also wanna read — go check pci_read_vpd(9) and stay cozy 💜

and that's the whole vibe! 🧚 this one lives over at ./drivers/pci, dated October 2026, so like... mark your calendar bestie 😭✨ slay, go write that VPD 💅🎀