apple_gmux_present(9)

apple_gmux_present(9) 🍓

Okay bestie, welcome to the Kernel API Manual page for apple_gmux_present(9) — it’s giving tiny-but-iconic kernel helper, fr fr. 💅

✨ NAME ✨

apple_gmux_present — check if gmux ACPI device is present 🎀

🦋 SYNOPSIS 🦋

bool apple_gmux_present (void );

🌸 ARGUMENTS 🌸

• void — no arguments. That’s it, that’s the whole menu. 🫶

🌈 DESCRIPTION 🌈

Drivers may use this to activate quirks specific to dual GPU MacBook Pros and Mac Pros, e.g. for deferred probing, runtime pm and backlight. So yeah, it’s the “is the gmux ACPI device actually here?” check for those special-case vibes. 👑

⭐ RETURN ⭐

Returns true if gmux ACPI device is present and the kernel was configured with CONFIG_APPLE_GMUX, false otherwise. Simple, clean, slay. 💖

👀 SEE ALSO 👀

• Kernel file ./include/linux/apple-gmux.h
• apple_gmux_detect(9)

That’s the whole glow-up, bestie. This page comes from ./include/linux, dated October 2026, and the manual page is apple_gmux_present(9) — mwah, periodt. 💋✨