ice_read_64b_ptp_reg_eth56g(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ice_read_64b_ptp_reg_eth56g(9) — it's giving "Kernel API Manual" energy ✨

okay bestie, sit down, we're doing kernel-doc now 🫶 this one lives in the Kernel API Manual, and honestly? she's a lil PTP register reader and she ATE.

🌸 NAME 🌸

ice_read_64b_ptp_reg_eth56g — literally just read a 64bit value from PHY registers 💖 no cap, that's the whole gig.

✨ SYNOPSIS ✨

int ice_read_64b_ptp_reg_eth56g (struct ice_hw *hw , u8 port , u16
low_addr , u64 *val );

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW struct 👑 (yes, the big one, hand it over)
  • port — the PHY port you're reading from 🦋
  • low_addr — offset of the lower register you're reading from 📍
  • val — on return, this holds the contents of the 64bit value from the PHY registers 🎁 (she gives back, that's main character energy)

💅 DESCRIPTION 💅

So here's the vibe: first we check if the caller has specified a known 40 bit register offset 👀 — like, is this even a real one, bestie? Then we read the two registers that go with a 40bit value and return it in the val pointer. Two registers, one value, zero drama. periodt 💀✨

🔥 RETURN 🔥

  • 0 — success, we slayed 🌈
  • EINVAL — not a 64 bit register 😭 (wrong address, wrong vibe, iykyk)
  • other — failed to read from PHY 💀 it happens to the best of us

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/intel/ice/ice_ptp_hw.c — that's home base, go say hi 🏠

and now, the friend group. all of them. every single one. no one gets left out 👑:

and that's the whole page bestie, mwah 💖 this lil guy ships out of ./drivers/net/ethernet/intel/ice and is dated October 2026 🎀 literally iconic, obsessed, go read some registers 🧚✨

📦 where this page comes from