ixgbe_ptp_adjfine_X550(9)

📦 version 7.3.1, in nixpkgs unstable

✨ NAME ✨

ixgbe_ptp_adjfine_X550 — and honestly bestie, the description slot on this one is empty, like the manpage author said "the name says it all" and dipped 💅. So: this is the X550 PTP fine-adjustment function, and you're in the <pink>Kernel API Manual</pink> for section 9.

✨ SYNOPSIS ✨

okay so here's literally the whole signature, no cap:

int ixgbe_ptp_adjfine_X550 (struct ptp_clock_info *ptp , long scaled_ppm
);

It takes two things and returns an int, that's the vibe check 🫶

🌸 ARGUMENTS 🌸

  • ptp — the ptp clock structure. your main character struct, the one holding all the clock info 💖
  • scaled_ppm — scaled parts per million adjustment from base. so like, ppm but with extra secret sauce (see below 😌)

🦋 DESCRIPTION 🦋

So what does it actually do? It adjusts the frequency of the SYSTIME registers by the indicated scaled_ppm from base frequency ✨ Like, nudge the clock's speed a lil bit, relative to where it started.

And what's "scaled" ppm, you ask? It's ppm with a 16-bit binary fractional field 🎀 So you get whole ppm plus a 16-bit fraction of a ppm packed in there. precision slay 💅

💜 SEE ALSO 💜

First up, the source itself, Kernel file:

./drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c

and then the whole friend group of sibling functions, all in section 9, in their original order because we don't rearrange the group chat 👑

ngl the whole X550 PTP saga is in <purple>./drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c</purple> — go read it, it's giving lore 🧚

okay that's the page!! so like, this version dropped October 2026 and the source path got tragically cut off in the footer as ./drivers/net/ethernet/intel/i... 😭 anyway — that's the <hotpink>ixgbe_ptp_adjfine_X550(9)</hotpink> manual page, from the Kernel API Manual, and honestly? she ate 🔥 byeee 👋💖

📦 where this page comes from