ec_install_handlers(9)

💖 ec_install_handlers 💖

okay bestie, welcome to the Kernel API Manual entry for ec_install_handlers — yes, the whole vibe is ACPI EC setup and we're gonna get you fluent, no cap. ✨

🌸 NAME 🌸

ec_install_handlers — install service callbacks and register query methods. literally her whole job. 💅

🎀 SYNOPSIS 🎀

int ec_install_handlers (struct acpi_ec *ec , struct acpi_device *device
       , bool call_reg );

🦋 ARGUMENTS 🦋

• ec — the target EC. that's the one we're setting up, bestie.
• device — the ACPI device object corresponding to ec.
• call_reg — if _REG should be called to notify OpRegion availability.

✨ DESCRIPTION ✨

So here's the tea: this function installs a handler for the EC address space type unless it has been installed already. no double-install chaos, we love to see it. 💖

If device is not NULL, it also looks for EC query methods in the namespace and registers them, and installs an event handler for the EC — either GPE or GPIO IRQ — if possible. iconic behavior, honestly. 🔥

🌈 RETURN 🌈

• -ENODEV if the address space handler cannot be installed, which means "unable to handle transactions" — yeah, that's the mood. 😭
• 0 (success) otherwise. slay. ✅

👑 SEE ALSO 👑

Kernel file ./drivers/acpi/ec.c — go read the source, iykyk. 🫶

xoxo, sign-off from source/version ./drivers/acpi, dated October 2026, page ec_install_handlers(9) 💌✨