phy_caps_init(9)

💅 phy_caps_init(9)

okay so bestie, welcome to the phy_caps_init(9) page — that's the kernel API manual entry, and yes we're reading kernel docs on purpose, we're that girl 💖

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✨ NAME ✨

phy_caps_init — the little function that initializes the link_caps array straight from the link_mode_params, no cap 🫶

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🌸 SYNOPSIS 🌸

int phy_caps_init (void );

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🎀 ARGUMENTS 🎀

• void — literally no arguments. she takes nothing, she gives everything 💅

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⭐ RETURN ⭐

• 0 — phy caps init was successful, slay ✨
• -EINVAL — we found an unexpected linkmode setting that requires a LINK_CAPS update. so like, not a code bug in your head, it's a "hey someone needs to go update the table" situation 😭

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🦋 SEE ALSO 🦋

kernel file ./drivers/net/phy/phy_caps.c — the main character's home 🏠, plus her whole friend group:

• phy_caps_speeds(9)
• phy_caps_lookup_by_linkmode(9)
• phy_caps_lookup_by_linkmode_rev(9)
• phy_caps_lookup(9)
• phy_caps_linkmode_max_speed(9)
• phy_caps_valid(9)
• phy_caps_linkmodes(9)
• phy_caps_from_interface(9)
• phy_caps_medium_get_supported(9)
• phy_caps_mediums_from_linkmodes(9)

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ngl this one's short and sweet — init the array, return 0, and if a linkmode shows up that the LINK_CAPS table doesn't know about, you get -EINVAL and somebody has to go add it. periodt 💀

okay bye bestie, this page lives in ./drivers/net/phy, dated October 2026, and it's iconic for it 🌈💜