i40e_ptp_adjtime(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 i40e_ptp_adjtime(9) — the Kernel API Manual glow-up 🎀

okay so bestie, you're in the Kernel API Manual and this page is all about i40e_ptp_adjtime, which is genuinely one of the most satisfying little functions in the i40e PTP universe. it's giving "small function, big responsibility" energy. let's go 💅

✨ NAME ✨

i40e_ptp_adjtime — adjust the PHC time. that's it, that's the whole vibe. nudge the clock, slay.

🦋 SYNOPSIS 🦋

int i40e_ptp_adjtime (struct ptp_clock_info *ptp , s64 delta );

💖 ARGUMENTS 💖

  • ptp — the PTP clock structure, aka the main character of this whole operation 👑
  • delta — the offset in nanoseconds you wanna adjust the PHC time by. it's literally a signed 64-bit number so yeah, you can go backwards too, we don't judge 🙈

🌈 DESCRIPTION 🌈

so here's the tea: this function adjusts the current clock time by a delta that you specify in nanoseconds. that's the whole bit. no cap, no extra steps — you hand it a ptp clock and a delta, and it shifts the PHC time by exactly that much. tiny function, enormous "i'm the reason your timestamps line up" energy ⭐

ngl, the units matter — delta is in nanoseconds, so if you're thinking in seconds you're gonna have a bad time 💀

🎀 SEE ALSO 🎀

the whole i40e PTP friend group, no one gets left out 🫶

iykyk, that's the full set — every single one of them, periodt 💜

and that's the page! this one lives under ./drivers/net/ethernet/intel/i40e and it's dated October 2026, so like… future icon behavior fr fr 🧚 mwah, go adjust some clocks bestie 💅✨

📦 where this page comes from