phy_on_sfp(9)

🦋 phy_on_sfp — a Kernel API Manual moment 🦋

okay so bestie, welcome to the Kernel API Manual entry for phy_on_sfp, and honestly? she's a little baby function with a big job. no cap.

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💖 NAME 💖

phy_on_sfp — the convenience function that tells you whether a PHY is chillin' on an SFP module. that's it, that's the whole vibe check 🎀

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✨ SYNOPSIS ✨

bool phy_on_sfp (struct phy_device *phydev );

literally one argument, returns a bool. lowkey iconic of her.

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🌸 ARGUMENTS 🌸

• phydev — the phy_device struct. that's the whole thing, bestie, that's what you hand her 💅

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🔥 SEE ALSO 🔥

okay this list is LONG, like she knows everybody, she's the main character of the PHY friend group. anyway, go read these, they're all right there in the Kernel file ./include/linux/phy.h:

• enum phy_interface_t(9)
• 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_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)

like… she literally knows everyone at the party 😭🫶

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ngl bestie, this one is a whole one-liner. no flags, no env vars, no exit statuses, no scary warnings. just a bool and a dream. 💜

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and that's the page!! 🧚 mwah 💋 this one came from the source path ./include/linux and it's dated October 2026 — so jot that down in your little notes app, bestie, and we'll see you at the next cross-reference 🎀✨🌈