of_mdio_find_device(9)

💖 of_mdio_find_device(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this one's a lil lookup function and honestly it's giving "short but powerful" energy. let's get into it 🎀

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🌸 NAME 🌸

of_mdio_find_device — given a device tree node, find the mdio_device 🦋

like, you hand it a node, it hands you back the mdio_device. matchmaker behaviour, honestly 💅

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✨ SYNOPSIS ✨

struct mdio_device * of_mdio_find_device (struct device_node *np );

yes that's the whole thing, no cap 🔥

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🫶 ARGUMENTS 🫶

• np — pointer to the mdio_device's device tree node 🌈 this is the thing you're searching by, so make sure it's the right node bestie, iykyk

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💅 DESCRIPTION 💅

so here's the vibe check 👑 if it works, it returns a pointer to the mdio_device — and the embedded struct device refcount gets incremented by one ⭐ (yes, that part matters, that's the whole "who owns this memory" situation).

if it fails? you get NULL. that's it, no drama, no error code, just NULL 😭

⚠️ important bestie: the caller should call put_device on the mdio_device after its use. like, you gotta give the ref back. don't just wander off with it, that's not main character energy, that's a leak 🙈

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🔍 SEE ALSO 🔍

• Kernel file ./drivers/net/mdio/of_mdio.c 📁
• __of_mdiobus_register(9)
• of_phy_find_device(9)
• of_phy_connect(9)
• of_phy_get_and_connect(9)

all the sibling functions, go read 'em, they slay too 💜

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and that's the whole page, bestie!! 🧚 mwah 💖 this one came to you from ./drivers/net/mdio, dated October 2026, and yeah — it's still of_mdio_find_device(9), iconic as ever 👑🍓