mdio45_ethto...settings_get(9)

💖 mdio45_ethtool_ksettings_get — a Kernel API Manual moment 💖

okay bestie, welcome to the kernel API manual, this one's about mdio45_ethtool_ksettings_get(9) and honestly it's giving "small function, big responsibilities" energy. let's get into it 🫶

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✨ NAME ✨

mdio45_ethtool_ksettings_get — get settings for ETHTOOL_GLINKSETTINGS 💅

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🌈 SYNOPSIS 🌈

void mdio45_ethtool_ksettings_get (const struct mdio_if_info *mdio ,
struct ethtool_link_ksettings *cmd );

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🎀 ARGUMENTS 🎀

• mdio — the MDIO interface, aka the whole reason we're here 🦋
• cmd — the Ethtool request structure, the vessel that carries the settings 💫

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🧚 DESCRIPTION 🧚

so here's the tea ☕ — the CSRs for auto-negotiation using next pages are not fully standardised, and because of that this function literally does not even attempt to decode them. not its job, not its problem, no cap 🙈

if you're trying to specify advertisement bits from next pages, you gotta go use mdio45_ethtool_ksettings_get_npage instead, iykyk 💜

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🔥 SEE ALSO 🔥

like, go read these too, they're all icons 👑

• Kernel file ./include/linux/mdio.h
• struct mdio_if_info(9)
• mmd_eee_cap_to_ethtool_sup_t(9)
• mmd_eee_adv_to_ethtool_adv_t(9)
• ethtool_adv_to_mmd_eee_adv_t(9)
• linkmode_adv_to_mii_10gbt_adv_t(9)
• mii_10gbt_stat_mod_linkmode_lpa_t(9)
• mii_t1_adv_l_mod_linkmode_t(9)
• mii_t1_adv_m_mod_linkmode_t(9)
• linkmode_adv_to_mii_t1_adv_l_t(9)
• linkmode_adv_to_mii_t1_adv_m_t(9)
• mii_eee_cap1_mod_linkmode_t(9)
• mii_eee_cap2_mod_linkmode_sup_t(9)
• mii_eee_cap2_mod_linkmode_adv_t(9)
• linkmode_to_mii_eee_cap1_t(9)
• linkmode_to_mii_eee_cap2_t(9)
• mii_10base_t1_adv_mod_linkmode_t(9)
• linkmode_adv_to_mii_10base_t1_t(9)
• mii_c73_mod_linkmode(9)
• mdio_module_driver(9)

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and that's the whole page bestie, no crumbs left behind, we ate and left no evidence 🍓

okay so the source on this one lives in ./include/linux and it's dated October 2026 — shoutout to the kernel docs for keeping it cute, mwah 💋✨🌸