ytphy_setup_master_slave(9)

💅 NAME 💅

ytphy_setup_master_slave — bestie, the description line is literally empty in the source, so we're not gonna make one up. It's giving "mystery icon" and we respect that. ✨

(This page lives in the Kernel API Manual, just so you know where you are 🫶)

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🌸 SYNOPSIS 🌸

int ytphy_setup_master_slave (struct phy_device *phydev );

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🎀 ARGUMENTS 🎀

• phydev — the target phy_device struct. That's the one, that's the main character 👑

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⚠️ NOTE ⚠️

Bestie, listen to me very carefully: the caller must have taken the MDIO bus lock. No cap. Do not skip this. Take the lock first, then call. 🔒

It returns 0 or a negative errno code. That's the whole vibe check: zero means slay, negative means something went sideways 😭

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🦋 SEE ALSO 🦋

Kernel file ./drivers/net/phy/motorcomm.c — and honestly, the whole extended family:

• 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)
• yt8521_fiber_config_aneg(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 entire friend group and every single one of them ate 💅🔥

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Okay that's the whole page, mwah 💖 This came from the source tree at ./drivers/net/phy and it's dated October 2026 — so like, future-core of it all 🌈⭐ Go forth and take that MDIO bus lock, bestie 🫶