ENUM PHY_INTERFACE_T(9)

🌸 enum phy_interface_t(9) 🌸

okay bestie, this is the enum phy_interface_t(9) page from the Kernel API Manual — it's basically the master list of every mode a MAC↔PHY interface can vibe in 💅

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✨ NAME ✨

enum phy_interface_t — the Interface Mode definitions, aka the whole roster of interface flavors 🎀

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✨ SYNOPSIS ✨

enum phy_interface_t {
    PHY_INTERFACE_MODE_NA ,
    PHY_INTERFACE_MODE_INTERNAL ,
    PHY_INTERFACE_MODE_MII ,
    PHY_INTERFACE_MODE_GMII ,
    PHY_INTERFACE_MODE_SGMII ,
    PHY_INTERFACE_MODE_TBI ,
    PHY_INTERFACE_MODE_REVMII ,
    PHY_INTERFACE_MODE_RMII ,
    PHY_INTERFACE_MODE_REVRMII ,
    PHY_INTERFACE_MODE_RGMII ,
    PHY_INTERFACE_MODE_RGMII_ID ,
    PHY_INTERFACE_MODE_RGMII_RXID ,
    PHY_INTERFACE_MODE_RGMII_TXID ,
    PHY_INTERFACE_MODE_RTBI ,
    PHY_INTERFACE_MODE_SMII ,
    PHY_INTERFACE_MODE_XGMII ,
    PHY_INTERFACE_MODE_XLGMII ,
    PHY_INTERFACE_MODE_MOCA ,
    PHY_INTERFACE_MODE_PSGMII ,
    PHY_INTERFACE_MODE_QSGMII ,
    PHY_INTERFACE_MODE_TRGMII ,
    PHY_INTERFACE_MODE_100BASEX ,
    PHY_INTERFACE_MODE_1000BASEX ,
    PHY_INTERFACE_MODE_2500BASEX ,
    PHY_INTERFACE_MODE_5GBASER ,
    PHY_INTERFACE_MODE_RXAUI ,
    PHY_INTERFACE_MODE_XAUI ,
    PHY_INTERFACE_MODE_10GBASER ,
    PHY_INTERFACE_MODE_25GBASER ,
    PHY_INTERFACE_MODE_USXGMII ,
    PHY_INTERFACE_MODE_10GKR ,
    PHY_INTERFACE_MODE_QUSGMII ,
    PHY_INTERFACE_MODE_1000BASEKX ,
    PHY_INTERFACE_MODE_10G_QXGMII ,
    PHY_INTERFACE_MODE_50GBASER ,
    PHY_INTERFACE_MODE_LAUI ,
    PHY_INTERFACE_MODE_100GBASEP ,
    PHY_INTERFACE_MODE_MIILITE ,
    PHY_INTERFACE_MODE_MAX

};

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💖 Constants 💖

like. every single one. no skipping, we're doing the whole list bestie 😤

• PHY_INTERFACE_MODE_NA — Not Applicable — don't touch 🙈
• PHY_INTERFACE_MODE_INTERNAL — no interface at all, MAC and PHY are combined 🫶
• PHY_INTERFACE_MODE_MII — Media-independent interface
• PHY_INTERFACE_MODE_GMII — Gigabit media-independent interface
• PHY_INTERFACE_MODE_SGMII — Serial gigabit media-independent interface
• PHY_INTERFACE_MODE_TBI — Ten Bit Interface
• PHY_INTERFACE_MODE_REVMII — Reverse Media Independent Interface
• PHY_INTERFACE_MODE_RMII — Reduced Media Independent Interface
• PHY_INTERFACE_MODE_REVRMII — Reduced Media Independent Interface in PHY role
• PHY_INTERFACE_MODE_RGMII — Reduced gigabit media-independent interface
• PHY_INTERFACE_MODE_RGMII_ID — RGMII with Internal RX+TX delay
• PHY_INTERFACE_MODE_RGMII_RXID — RGMII with Internal RX delay
• PHY_INTERFACE_MODE_RGMII_TXID — RGMII with Internal TX delay
• PHY_INTERFACE_MODE_RTBI — Reduced TBI
• PHY_INTERFACE_MODE_SMII — Serial MII
• PHY_INTERFACE_MODE_XGMII — 10 gigabit media-independent interface
• PHY_INTERFACE_MODE_XLGMII — 40 gigabit media-independent interface
• PHY_INTERFACE_MODE_MOCA — Multimedia over Coax
• PHY_INTERFACE_MODE_PSGMII — Penta SGMII
• PHY_INTERFACE_MODE_QSGMII — Quad SGMII
• PHY_INTERFACE_MODE_TRGMII — Turbo RGMII
• PHY_INTERFACE_MODE_100BASEX — 100 BaseX
• PHY_INTERFACE_MODE_1000BASEX — 1000 BaseX
• PHY_INTERFACE_MODE_2500BASEX — 2500 BaseX
• PHY_INTERFACE_MODE_5GBASER — 5G BaseR
• PHY_INTERFACE_MODE_RXAUI — Reduced XAUI
• PHY_INTERFACE_MODE_XAUI — 10 Gigabit Attachment Unit Interface
• PHY_INTERFACE_MODE_10GBASER — 10G BaseR
• PHY_INTERFACE_MODE_25GBASER — 25G BaseR
• PHY_INTERFACE_MODE_USXGMII — Universal Serial 10GE MII
• PHY_INTERFACE_MODE_10GKR — 10GBASE-KR - with Clause 73 AN
• PHY_INTERFACE_MODE_QUSGMII — Quad Universal SGMII
• PHY_INTERFACE_MODE_1000BASEKX — 1000Base-KX - with Clause 73 AN
• PHY_INTERFACE_MODE_10G_QXGMII — 10G-QXGMII - 4 ports over 10G USXGMII
• PHY_INTERFACE_MODE_50GBASER — 50GBase-R - with Clause 134 FEC
• PHY_INTERFACE_MODE_LAUI — 50 Gigabit Attachment Unit Interface
• PHY_INTERFACE_MODE_100GBASEP — 100GBase-P - with Clause 134 FEC
• PHY_INTERFACE_MODE_MIILITE — MII-Lite - MII without RXER TXER CRS COL
• PHY_INTERFACE_MODE_MAX — Book keeping

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🦋 Description 🦋

So what does this whole thing even do? It describes the interface between the MAC and the PHY. that's it, that's the vibe ✨

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🌈 SEE ALSO 🌈

Kernel file ./include/linux/phy.h — and now the extended fam, all of them, in order, no cap:

phy_modes(9), rgmii_clock(9), struct mdio_bus_stats(9), struct mii_bus(9), mdiobus_alloc(9), enum phy_state(9), struct phy_c45_device_ids(9), struct phy_oatc14_sqi_capability(9), struct phy_device(9), struct phy_tdr_config(9), enum link_inband_signalling(9), struct phy_plca_cfg(9), struct phy_plca_status(9), struct phy_led(9), struct phy_mse_capability(9), struct phy_mse_snapshot(9), struct phy_driver(9), phy_id_compare(9), phy_id_compare_vendor(9), phy_id_compare_model(9), phydev_id_compare(9), phy_is_started(9), phy_driver_is_genphy(9), phy_disable_eee_mode(9), phy_can_wakeup(9), phy_may_wakeup(9), phy_read(9), __phy_read(9), phy_write(9), __phy_write(9), __phy_modify_changed(9), phy_read_mmd_poll_timeout(9), __phy_set_bits(9), __phy_clear_bits(9), phy_set_bits(9), phy_clear_bits(9), __phy_set_bits_mmd(9), __phy_clear_bits_mmd(9), phy_set_bits_mmd(9), phy_clear_bits_mmd(9), phy_interrupt_is_valid(9), phy_polling_mode(9), phy_has_hwtstamp(9), phy_has_rxtstamp(9), phy_has_tsinfo(9), phy_has_txtstamp(9), phy_is_default_hwtstamp(9), phy_on_sfp(9), phy_interface_mode_is_rgmii(9), phy_interface_mode_is_8023z(9), phy_interface_is_rgmii(9), phy_is_pseudo_fixed_link(9), phy_module_driver(9)

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that's the whole page bestie, go forth and pick your interface mode 💅✨

and that's a wrap!! this one came out of ./include/linux, dated October 2026, page enum phy_interface_t(9) — mwah, love u, bye 🎀💖🦋