yt8521_fiber_config_aneg(9)

💅 yt8521_fiber_config_aneg(9) 💅

okay so bestie, welcome to the Kernel API Manual entry for yt8521_fiber_config_aneg — and yes, that's the whole vibe, it's a kernel function with a name long enough to be a runway walk. grab a boba, we're doing this 🧋✨

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🌸 NAME 🌸

yt8521_fiber_config_aneg — restart auto-negotiation, or write YTPHY_MISC_CONFIG_REG.

no cap, those are the only two things on the menu. one job: kick off aneg again, or push something into YTPHY_MISC_CONFIG_REG. she's focused, she's got main character energy, she knows what she's about 💅

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✨ SYNOPSIS ✨

int yt8521_fiber_config_aneg (struct phy_device *phydev );

it's giving "small signature, big responsibility" honestly 🫶

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🎀 ARGUMENTS 🎀

• phydev — the target phy_device struct. this is literally the whole argument list, she's low maintenance like that 👑

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🦋 NOTE 🦋

⚠️ okay this part matters, bestie, don't skip it — the caller must have taken the MDIO bus lock. that's a hard requirement, not a suggestion. no lock, no slay. periodt 🔒

and the return value: it returns 0 or a negative errno code. so if you see a negative number, that's the universe telling you something went wrong 😭

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🌈 SEE ALSO 🌈

she's got a huge friend group, iykyk. all of these live in the kernel file ./drivers/net/phy/motorcomm.c:

• ytphy_read_ext(9)
• ytphy_read_ext_with_lock(9)
• ytphy_write_ext(9)
• ytphy_write_ext_with_lock(9)
• ytphy_modify_ext(9)
• ytphy_modify_ext_with_lock(9)
• ytphy_get_wol(9)
• ytphy_set_wol(9)
• yt8521_read_page(9)
• yt8521_write_page(9)
• struct ytphy_cfg_reg_map(9)
• struct ytphy_ldo_vol_map(9)
• yt8521_probe(9)
• ytphy_utp_read_lpa(9)
• yt8521_adjust_status(9)
• yt8521_read_status_paged(9)
• yt8521_read_status(9)
• yt8521_modify_bmcr_paged(9)
• yt8521_modify_utp_fiber_bmcr(9)
• yt8521_soft_reset(9)
• yt8521_suspend(9)
• yt8521_resume(9)
• yt8521_config_init(9)
• yt8531_link_change_notify(9)
• yt8521_prepare_fiber_features(9)
• yt8521_fiber_setup_forced(9)
• ytphy_check_and_restart_aneg(9)
• ytphy_setup_master_slave(9)
• ytphy_utp_config_advert(9)
• ytphy_utp_config_aneg(9)
• yt8521_config_aneg_paged(9)
• yt8521_config_aneg(9)
• yt8521_aneg_done_paged(9)
• yt8521_aneg_done(9)
• ytphy_utp_read_abilities(9)
• yt8521_get_features_paged(9)
• yt8521_get_features(9)
• yt8821_get_features(9)
• yt8821_get_rate_matching(9)
• yt8821_aneg_done(9)
• yt8821_serdes_init(9)
• yt8821_utp_init(9)
• yt8821_auto_sleep_config(9)
• yt8821_soft_reset(9)
• yt8821_config_init(9)
• yt8821_adjust_status(9)
• yt8821_update_interface(9)
• yt8821_read_status(9)
• yt8821_modify_utp_fiber_bmcr(9)
• yt8821_suspend(9)
• yt8821_resume(9)

like, that's the whole group chat right there, and every single one of them is invited 🫶💖

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and that's the page!! mwah 💋 before you go — this icon lives in ./drivers/net/phy, the manual is dated October 2026, and it's brought to you by the source/version line that says ./drivers/net/phy + October 2026 + yt8521_fiber_config_aneg(9) all cozy together. go forth and lock your MDIO bus, bestie 🌟🎀🦋