phy_get_internal_delay(9)

📦 version 7.3.1, in nixpkgs unstable

💖 phy_get_internal_delay(9) 💖

okay so bestie, welcome to the Kernel API Manual — this lil page is all about phy_get_internal_delay, and it is literally the function that hands you back the index of the internal delay. slay. let's get into it 🎀

✨ NAME ✨

phy_get_internal_delay — returns the index of the internal delay 👑

🌸 SYNOPSIS 🌸

s32 phy_get_internal_delay (struct phy_device *phydev , const int
       *delay_values , int size , bool is_rx );

like, that's the whole signature, no cap 🫶

🦋 ARGUMENTS 🦋

  • phydev — the phy_device struct, bestie. it's the star of the show 💅
  • delay_values — array of delays the PHY supports ✨
  • size — the size of the delay array, yes the actual size 🌸
  • is_rx — boolean that indicates you wanna get the rx internal delay 📡

💜 DESCRIPTION 💜

so what it does: it returns the index within the array of internal delay that you passed in. that's the vibe check. 🔥

and if the device property is not present? then the interface type gets checked — if the interface defines use of internal delay then a 1 is returned, otherwise a 0 is returned. no cap, that's the whole logic 💀

⚠️ the array must be in ascending order. like, mandatory. if your PHY doesn't have an ascending order array then size = 0 and the value of the delay property is returned instead.

and if the delay is invalid or cannot be found? it returns -EINVAL. periodt. 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/net/phy/phy_device.c, plus a whole friend group of functions, all here, all accounted for 🫶:

that's the whole page bestie, go forth and read your delays 🌟💖

sign-off szn 🎀 — this iconic lil number lives in ./drivers/net/phy and it's dated October 2026, mwah 💋✨

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