STRUCT PHY_ATTRS(9)

✨ struct phy_attrs(9) ✨

okay so bestie, welcome to the Kernel API Manual — today's main character is struct phy_attrs, and it literally represents phy attributes 💅 like that's its whole job, no cap.

🌸 SYNOPSIS 🌸

struct phy_attrs {
    u32 bus_width;
    u32 max_link_rate;
    enum phy_mode           mode;
 };

that's it, that's the struct 🎀 three little fields, all vibes, all business.

🦋 Members 🦋

• bus_width — the data path width that the PHY actually implements, fr fr. that's the width of the lane situation you're working with 💖
• max_link_rate — the maximum link rate the PHY can support 🔥. and here's the tea: the units on this one are to be decided by producer and consumer — so like, it's giving "you two figure it out" energy 😭 there's no fixed unit baked in, iykyk.
• mode — the PHY mode, periodt. it's an enum phy_mode, bestie, so it's picking from the mode menu 🌈

👑 SEE ALSO 👑

go peek at the Kernel file ./include/linux/phy/phy.h and these iconic siblings:

• union phy_configure_opts(9)
• struct phy_ops(9)
• struct phy(9)
• struct phy_provider(9)
• struct phy_lookup(9)

💀 real talk: max_link_rate having undecided units is not a bug note, it's just how it's documented — producer and consumer gotta agree on what they mean. don't @ me.

and that's the whole page, bestie 🫶 straight from ./include/linux/phy, dated October 2026 — struct phy_attrs(9) ate and left no crumbs ✨💅