class_compat_register(9)

💖 class_compat_register(9) — Kernel API Manual 💖

okay so bestie, we're in the Kernel API Manual and this page is about class_compat_register(9). Short page, big compatibility-class energy. Let's go 💅

🌸 NAME 🌸

class_compat_register — register a compatibility class.

✨ SYNOPSIS ✨

struct class_compat * class_compat_register (const char *name );

🎀 ARGUMENTS 🎀

• name — the name of the class. That's the label you're giving this compatibility class, bestie. 🏷️

🦋 DESCRIPTION 🦋

Compatibility classes are literally a temporary user-space compatibility workaround. They're meant for that moment when you're converting a family of class devices over to bus devices. It's giving "bridge era" energy: temporary, user-space-friendly, and doing a compatibility bit while the conversion happens. ✨

No cap: the original says these are meant as a temporary workaround — so don't treat them like forever main-character architecture. 💀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/base/class.c
• class_to_subsys(9)
• class_create(9)
• class_destroy(9)
• class_dev_iter_init(9)
• class_dev_iter_next(9)
• class_dev_iter_exit(9)
• class_for_each_device(9)
• class_find_device(9)
• class_compat_unregister(9)
• class_compat_create_link(9)
• class_compat_remove_link(9)
• class_is_registered(9)

byeee 💖 this cutie came from source ./drivers/base, dated October 2026, and it's the class_compat_register(9) page. 🫶