wmi_set_block(9)

💖 wmi_set_block(9) — straight from the Kernel API Manual, bestie 💖

Okay so this page is about wmi_set_block, and it lives in the Kernel API Manual. It writes stuff into a WMI block, but heads up: it's deprecated 😭.

🌸 NAME 🌸

wmi_set_block — Write to a WMI block (deprecated) 🫶

✨ SYNOPSIS ✨

acpi_status wmi_set_block (const char *guid_string , u8 instance , const
struct acpi_buffer *in );

🎀 ARGUMENTS 🎀

• guid_string — a 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba. Literally that exact shape, iykyk.
• instance — Instance index, obvi.
• in — Buffer containing new values for the data block.

💫 DESCRIPTION 💫

It writes the contents of the input buffer to an ACPI-WMI data block. That's it, that's the whole move ✨. But again: deprecated 💀, so don't act like it's the main character unless you have to.

🔁 RETURN 🔁

It returns acpi_status signaling success or error. So it's giving status-code realness 🔥.

👀 SEE ALSO 👀

Kernel file ./drivers/platform/wmi/core.c and the whole bestie list:

• wmi_instance_count(9)
• wmidev_instance_count(9)
• wmi_evaluate_method(9)
• wmidev_evaluate_method(9)
• wmidev_invoke_method(9)
• wmidev_invoke_procedure(9)
• wmi_query_block(9)
• wmidev_block_query(9)
• wmidev_query_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)

💌 okay bye bestie! source/version: ./drivers/platform/wmi; date: October 2026; page: wmi_set_block(9) — mwah 💋