genphy_read_status_fixed(9)

💅 genphy_read_status_fixed(9) — from the Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual, entry number nine, and this one is a little legend in the PHY world. it's giving "quietly doing the important thing while everyone else is busy negotiating." no cap. 🎀

---

✨ NAME ✨

genphy_read_status_fixed — read the link parameters for !aneg mode 🦋

(yes, that's literally a not-aneg exclamation mark, it's not yelling at you, it's C-ese for "negation." iykyk 💅)

---

🦋 SYNOPSIS 🦋

int genphy_read_status_fixed (struct phy_device *phydev );

notice the teeny space before that closing paren — that's not me being messy, that's canon. copy it exact if you're copying it, mkay? 🫶

---

🎀 ARGUMENTS 🎀

• phydev — the target struct phy_device. that's your main character right there, the whole reason we're here. give it a little kiss on the forehead for me. 😭

---

🌸 DESCRIPTION 🌸

so here's the vibe check: this function reads the current duplex and speed state for a PHY that's operating with autonegotiation disabled. 🔥

that's the whole thing. that's the post. when aneg is off, nobody's out there negotiating for you, so somebody's gotta go look at what the link is actually doing — and that somebody is genphy_read_status_fixed. literally the responsible friend of the group chat. 👑

no guessing, no inventing, no "ooh maybe it also does X" — the manual says duplex and speed, so duplex and speed it is. periodt. 💅

---

🌈 SEE ALSO 🌈

everything is family here, so here's the whole extended crew, living in the kernel file ./drivers/net/phy/phy_device.c 📂 — and fr fr, there's a lot of them:

phy_uses_state_machine(9), phy_register_fixup(9), genphy_match_phy_device(9), get_phy_c45_ids(9), get_phy_c22_id(9), get_phy_device(9), phy_device_register(9), phy_device_remove(9), phy_get_c45_ids(9), phy_find_next(9), phy_prepare_link(9), phy_connect_direct(9), phy_connect(9), phy_disconnect(9), phy_poll_reset(9), phy_sfp_connect_phy(9), phy_sfp_disconnect_phy(9), phy_sfp_attach(9), phy_sfp_detach(9), phy_sfp_probe(9), phy_attach_direct(9), phy_detach(9), phy_reset_after_clk_enable(9), genphy_config_advert(9), genphy_c37_config_advert(9), genphy_setup_forced(9), genphy_restart_aneg(9), genphy_check_and_restart_aneg(9), __genphy_config_aneg(9), genphy_c37_config_aneg(9), genphy_aneg_done(9), genphy_update_link(9), genphy_read_status(9), genphy_c37_read_status(9), genphy_soft_reset(9), genphy_read_abilities(9), phy_remove_link_mode(9), phy_advertise_supported(9), phy_advertise_eee_all(9), phy_support_eee(9), phy_disable_eee(9), phy_support_sym_pause(9), phy_support_asym_pause(9), phy_set_sym_pause(9), phy_set_asym_pause(9), phy_validate_pause(9), phy_get_pause(9), phy_get_internal_delay(9), phy_get_tx_amplitude_gain(9), phy_get_mac_termination(9), phy_get_sfp_port(9), fwnode_mdio_find_device(9), fwnode_phy_find_device(9), fwnode_get_phy_node(9), phy_probe(9), phy_driver_register(9)

like… the whole roster. take your time. 🧚

---

🌟 cute little sign-off: this page lives under ./drivers/net/phy, it's dated October 2026, and that's the tea bestie — mwah 💖 🍓