phy_aneg_done(9)

💅 phy_aneg_done(9) — like, the Kernel API Manual but make it make sense

okay so bestie, welcome to phy_aneg_done from the Kernel API Manual ✨ this one's short and sweet and honestly kind of iconic — it's the "hey babe, are we negotiated yet?" function 🎀

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💖 NAME 💖

phy_aneg_done — returns the auto-negotiation status, that's it, that's the whole vibe 🦋

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✨ SYNOPSIS ✨

int phy_aneg_done (struct phy_device *phydev );

literally one argument, one return value, no drama 💅

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🌸 ARGUMENTS 🌸

• phydev — the target phy_device struct 👑 this is the phy you're asking about, your main character, the one whose auto-negotiation status you wanna know about 🫶

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🔥 DESCRIPTION 🔥

So here's the tea ☕ — you call this bad boy and it returns the auto-negotiation status from this phydev. And the return value is doing a little three-way split, so pay attention bestie:

• > 0 — success, slay, auto-negotiation went through 💖
• < 0 — error, it's giving red flags 😭 something went wrong
• 0 — nope, not yet — auto-negotiation is still pending ⏳ like bestie it is literally still loading

ngl, 0 is the sneaky one 🙈 don't treat it as a fail, it just means "come back later" — auto-negotiation isn't done yet, no cap.

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🦋 SEE ALSO 🦋

okay this is the part where the manpage just dumps the entire friend group on you 😭 like everyone from the kernel file ./drivers/net/phy/phy.c showed up to the party 🎉

phy_print_status(9), phy_get_rate_matching(9), phy_config_interrupt(9), phy_restart_aneg(9), phy_supported_speeds(9), phy_check_valid(9), phy_sanitize_settings(9), phy_mii_ioctl(9), phy_do_ioctl(9), phy_do_ioctl_running(9), __phy_hwtstamp_get(9), __phy_hwtstamp_set(9), phy_queue_state_machine(9), phy_trigger_machine(9), phy_ethtool_get_strings(9), phy_ethtool_get_sset_count(9), phy_ethtool_get_stats(9), __phy_ethtool_get_phy_stats(9), __phy_ethtool_get_link_ext_stats(9), phy_ethtool_get_plca_cfg(9), plca_check_valid(9), phy_ethtool_set_plca_cfg(9), phy_ethtool_get_plca_status(9), phy_start_cable_test(9), phy_start_cable_test_tdr(9), phy_check_link_status(9), phy_inband_caps(9), phy_config_inband(9), _phy_start_aneg(9), phy_start_aneg(9), phy_speed_down(9), phy_speed_up(9), phy_start_machine(9), phy_stop_machine(9), phy_error(9), phy_write_barrier(9), phy_disable_interrupts(9), phy_interrupt(9), phy_enable_interrupts(9), phy_update_stats(9), phy_request_interrupt(9), phy_free_interrupt(9), phy_get_next_update_time(9), phy_state_machine(9), phy_stop(9), phy_start(9), phy_mac_interrupt(9), phy_loopback(9), phy_eee_tx_clock_stop_capable(9), phy_eee_rx_clock_stop(9), phy_init_eee(9), phy_get_eee_err(9), phy_ethtool_get_eee(9), phy_ethtool_set_eee_noneg(9), phy_ethtool_set_eee(9), phy_ethtool_set_wol(9), phy_ethtool_get_wol(9), phy_ethtool_nway_reset(9)

yeah. all of them. i don't make the rules 🧚 i just keep every single reference, fr fr 💜

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and that's the whole page bestie!! no cap, that was a short one 🌈 go read the whole function list above if you want the full lore iykyk

mwah 💋 this has been phy_aneg_done(9) from the ./drivers/net/phy corner of the Kernel API Manual, dated October 2026 — periodt, take care of her, she's iconic 👑⭐