lan78xx_set_fixed_link(9)

💖 NAME 💖

okay bestie, welcome to the lan78xx_set_fixed_link(9) page in the Kernel API Manual ✨ this one is all about lan78xx_set_fixed_link — Set fixed link configuration for LAN7801 💅

✨ SYNOPSIS ✨

int lan78xx_set_fixed_link (struct lan78xx_net *dev );

🎀 ARGUMENTS 🎀

• dev — the LAN78xx device, periodt 🫶

🌸 DESCRIPTION 🌸

so this function uses fixed link configuration with 1 Gbps full duplex ✨ it’s for special cases like EVB-KSZ9897-1, where LAN7801 acts as a USB-to-Ethernet interface to a switch without a visible PHY 👑 no cap, that’s the whole setup 💖

🔥 RETURN 🔥

it returns a pointer to the registered fixed PHY, or ERR_PTR on error 😭 that’s the vibe check, fr fr 🦋

🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/usb/lan78xx.c 💫
• lan78xx_phy_int_ack(9) 🎀
• lan78xx_configure_usb(9) 💅
• lan78xx_configure_flowcontrol(9) 🌈
• lan78xx_mac_eee_enable(9) ⭐
• lan78xx_get_phy(9) 💜
• lan78xx_mac_prepare_for_phy(9) 🌸
• lan78xx_configure_leds_from_dt(9) 🧚

made with 💖 from ./drivers/net/usb, dated October 2026 — slay and goodbye bestie 🎀✨