i40e_aq_write_ddp(9)

📦 version 7.3.1, in nixpkgs unstable

💖 i40e_aq_write_ddp — like, the whole vibe 💖

okay so bestie, you're reading the Kernel API Manual entry for i40e_aq_write_ddp(9) and honestly? she's a whole moment. it's giving "i write the DDP package and i know it". let's get into it 🫶

✨ NAME ✨

i40e_aq_write_ddp — Write dynamic device personalization (ddp). that's it, that's the girl. 🎀

✨ SYNOPSIS ✨

int i40e_aq_write_ddp (struct i40e_hw *hw , void *buff , u16 buff_size ,
       u32 track_id , u32 *error_offset , u32 *error_info , struct
       i40e_asq_cmd_details *cmd_details );

she returns an int, she takes seven arguments, and she is not sorry about it 💅

✨ ARGUMENTS ✨

okay so every single one of these matters, no skipping, no cap:

  • hw — pointer to the hw struct. your whole personality? no babe, this is the hardware's. 🌸
  • buff — the command buffer. and bestie, size in bytes = buff_size. write that down. literally. ✍️
  • buff_size — the buffer size in bytes. yes it's the thing you just matched buff against. they're a package deal 🎁
  • track_id — package tracking id. she's tracking the package like it's a lost Sephora order 📦
  • error_offset — returns error offset. she gives you the where 🧚
  • error_info — returns error information. she gives you the what 🔥
  • cmd_details — pointer to command details structure or NULL. your choice, main character 🫶
ngl, keep the ERROR_OFFSET/ERROR_INFO pointers happy — they're out-params, they're doing return-duty, and they're doing it flawlessly 💜

🦋 SEE ALSO 🦋

first up, the source file, the origin story:

  • Kernel file ./drivers/net/ethernet/intel/i40e/i40e_common.c

and now the entire extended friend group — like, the whole group chat, everyone invited, nobody left on read:

like… that's the whole roster. ate and left zero crumbs 👑✨

and that's the page, bestie!! this one lives in ./drivers/net/ethernet/intel/i40e, dated October 2026 — mwah, love u, go write some DDP 💖🦋🎀

📦 where this page comes from