driver_find_device_by_devt(9)

✨ driver_find_device_by_devt(9) ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a tiny little function page but it's lowkey doing important matchmaking work, so let's get into it 🫶

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🌸 NAME 🌸

driver_find_device_by_devt — device iterator for locating a particular device by devt.

like, it's a whole device-iterator situation whose entire personality is "find me the ONE device that matches this devt" 🔍✨

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🎀 SYNOPSIS 🎀

struct device * driver_find_device_by_devt (const struct device_driver
*drv , dev_t devt );

it's giving "returns a struct device *" and takes two args, no cap 💖

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🦋 ARGUMENTS 🦋

• drv — the driver we're iterating 👑 this is the driver whose devices you're walking through, bestie.
• devt — devt pointer to match 🎯 the one you're holding up like a little ID card going "are you this one? no? next."

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🌈 SEE ALSO 🌈

Kernel file ./include/linux/device/driver.h, plus the whole friend group of related reads 💜:

• enum probe_type(9)
• struct device_driver(9)
• driver_find_device_by_name(9)
• driver_find_device_by_of_node(9)
• driver_find_device_by_fwnode(9)
• driver_find_device_by_acpi_dev(9)
• module_driver(9)
• builtin_driver(9)

iykyk, that's the full squad of "find a device by something" helpers — this one just happens to be the devt girlie 🍓

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💀 reminder: keep the types exactly as written — const struct device_driver *drv and dev_t devt — no "fixing" them, that's the whole api, periodt ✨

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okay that's the page!! mwah 💋 this came from ./include/linux/device, dated October 2026 — go forth and iterate responsibly, bestie 🧚💖