nct6694_read_msg(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– nct6694_read_msg(9) πŸ’–

ok so this is a page from the Kernel API Manual, bestie β€” it's nct6694_read_msg(9) and it's literally the little function that goes and gets your data back from the NCT6694 chip. no cap, it's short, but it's iconic.


✨ NAME ✨

nct6694_read_msg β€” Read message from NCT6694 device 🫢


🌸 SYNOPSIS 🌸

int nct6694_read_msg (struct nct6694 *nct6694 , const struct
       nct6694_cmd_header *cmd_hd , void *buf );

like, three args, in that exact order, okay? don't come for me. πŸ’…


πŸŽ€ ARGUMENTS πŸŽ€

  • nct6694 β€” NCT6694 device pointer ✨ (yes it's the device, it's giving "who am I talking to")
  • cmd_hd β€” command header structure 🌈 (this is the ~ask~, the vibe you're sending over)
  • buf β€” buffer to store the response data πŸ¦‹ (this is where the answer lands, bestie β€” you bring the bucket, the chip fills it)

πŸ”₯ DESCRIPTION πŸ”₯

okay so here's the tea: nct6694_read_msg sends a command to the NCT6694 device and reads the response back. fr fr, that's the whole job. 🧚

the command header you want is passed in through cmd_hd, and the response data gets stored in buf. literally send + receive, main character energy. πŸ‘‘


⭐ RETURN ⭐

  • Negative value on error 😭 (it went wrong, that's the sad path)
  • 0 on success ✨ (slay, we got it)
lowkey important: it's negative on error, not positive. zero is the win. don't flip it, i'm begging. πŸ™ˆ

🌈 SEE ALSO 🌈

  • Kernel file ./drivers/mfd/nct6694.c πŸ“
  • nct6694_write_msg(9) πŸ’œ β€” the other half of the duo, the send to this read. go check it out iykyk

and that's the page!! πŸ’– this one came out of ./drivers/mfd and it's dated October 2026, so yeah β€” write it down, screenshot it, whatever, it's canon now. mwah πŸ“πŸ’…

πŸ“¦ where this page comes from