wmidev_invoke_procedure(9)

💅 wmidev_invoke_procedure(9) — Kernel API Manual ✨

okay bestie, this is the wmidev_invoke_procedure(9) page from the Kernel API Manual. It’s the “call a WMI method, get literally nothing back” girlie. Let’s go 🎀

🌸 NAME 🌸

wmidev_invoke_procedure — Invoke a WMI method that does not return values.

🦋 SYNOPSIS 🦋

int wmidev_invoke_procedure (struct wmi_device *wdev , u8 instance , u32 method_id , const struct wmi_buffer *in );

🎀 ARGUMENTS 🎀

• wdev — A wmi bus device from a driver. literally the device ur driver is working with 🫶
• instance — Instance index. the index, bestie ✨
• method_id — Method ID to call. tell it which method ID u want 🔥
• in — Mandatory WMI buffer containing input for the method call. mandatory means u can’t skip it, no cap 💀

💖 DESCRIPTION 💖

okay so this function invokes a WMI method that does not return any values. That’s the whole vibe: you call it, it does the thing, and no return values come back. If you need a WMI method that does return values, use wmidev_invoke_method instead — that’s the one for values, bestie. 💅

⭐ RETURN ⭐

0 on success, or a negative error code on failure. that’s it. success is 0, failure is negative error code. periodt. 💀

🌈 SEE ALSO 🌈

Kernel file: ./drivers/platform/wmi/core.c — that’s the kernel file, bestie. and the whole friend group is:

• wmi_instance_count(9)
• wmidev_instance_count(9)
• wmi_evaluate_method(9)
• wmidev_evaluate_method(9)
• wmidev_invoke_method(9)
• wmi_query_block(9)
• wmidev_block_query(9)
• wmidev_query_block(9)
• wmi_set_block(9)
• wmidev_block_set(9)
• wmidev_set_block(9)
• wmi_install_notify_handler(9)
• wmi_remove_notify_handler(9)
• wmi_has_guid(9)
• wmi_get_acpi_device_uid(9)
• wmi_driver_unregister(9)

that’s the whole page, bestie. source/version vibes from ./drivers/platform/wmi, dated October 2026 — wmidev_invoke_procedure(9) signing off! 🫶💖