usb_get_phy(9)

💖 usb_get_phy(9) 💖

okay so welcome to the Kernel API Manual bestie, this is the page for usb_get_phy(9) and we're gonna get you so comfy with it 🫶

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✨ NAME ✨

usb_get_phy — find the USB PHY 💅

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✨ SYNOPSIS ✨

struct usb_phy * usb_get_phy (enum usb_phy_type type );

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✨ ARGUMENTS ✨

• type — the type of the phy that the controller requires. that's the whole vibe check right there, you tell it what kind you need and it goes looking 🔍

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✨ DESCRIPTION ✨

okay so here's the tea ☕ — this one returns the phy driver, but only after getting a refcount to it. yes, refcount. she's counting her references, as she should 👑

and if there's no such phy? you get -ENODEV back. no phy, no problem, just an error code, don't take it personally 😭 literally just means it wasn't there.

⚠️ real talk though: the caller is responsible for calling usb_put_phy to release that count. that refcount is yours now. you asked for it, you clean it up. no cap, don't just leave it hanging 💀

this whole thing is for use by USB host and peripheral drivers — that's the crowd this is for, iykyk 🌸

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✨ SEE ALSO ✨

• Kernel file ./drivers/usb/phy/phy.c — go read the source bestie, it's all in there 📖
• usb_phy_notify_charger_work(9)
• usb_phy_get_charger_type(9)
• usb_phy_set_charger_current(9)
• usb_phy_get_charger_current(9)
• usb_phy_set_charger_state(9)
• devm_usb_get_phy(9)
• devm_usb_get_phy_by_node(9)
• devm_usb_get_phy_by_phandle(9)
• usb_put_phy(9)
• usb_add_phy(9)
• usb_add_phy_dev(9)
• usb_remove_phy(9)
• usb_phy_set_event(9)

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and that's the page!! 🎀 this lil cutie lives over in ./drivers/usb/phy and she's dated October 2026 — iconic, timeless, main character energy fr fr. mwah, go release your refcounts 💋💖