DEVICE_FIND_CHILD(9)

okay bestie, welcome to the device_find_child(9) page from the kernel developer's manual — we're looking for a child device and yes, it's exactly as iconic as it sounds 💖

🎀 NAME 🎀

device_find_child — search for a child of a device ✨

🌸 SYNOPSIS 🌸

#include <sys/param.h>
#include <sys/bus.h>

device_t
device_find_child(device_t dev, const char *classname, int unit);

🦋 DESCRIPTION 🦋

This function is on a mission: it looks for a specific child of dev that has the given classname and unit 💅

And when unit is -1, it returns the first child of dev with a matching classname — that is, the one with the lowest unit. No cap, that's the whole vibe check 🔥

⭐ RETURN VALUES ⭐

If it exists, the child device is returned. Otherwise, you get NULL 😭

🌈 SEE ALSO 🌈

• device_add_child(9)

👑 AUTHORS 👑

This manual page was written by Doug Rabson 💜

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cute sign-off time, bestie: the footer deets are Debian, February 8, 2005, and DEVICE_FIND_CHILD(9) — slay and goodbye 🫶✨