acpi_evaluate_reg(9)

🦋 acpi_evaluate_reg(9) — Kernel API Manual 🦋

okay bestie, this is acpi_evaluate_reg(9) from the Kernel API Manual — let’s get into it 💖

🌸 NAME 🌸

acpi_evaluate_reg — Evaluate _REG method to register OpRegion presence ✨

✨ SYNOPSIS ✨

acpi_status acpi_evaluate_reg (acpi_handle handle , u8 space_id , u32
       function );

🎀 ARGUMENTS 🎀

• handle — ACPI device handle.
• space_id — ACPI address space id to register OpRegion presence for.
• function — Parameter to pass to _REG one of ACPI_REG_CONNECT or ACPI_REG_DISCONNECT.

💅 DESCRIPTION 💅

Evaluate device's _REG method to register OpRegion presence. That's literally the whole assignment, bestie — evaluate the device's _REG method so that OpRegion presence gets registered. Slay. 🫶

👑 SEE ALSO 👑

Kernel file: ./drivers/acpi/utils.c — and here’s the whole see-also bestie lineup, in order:

• acpi_handle_list_equal(9)
• acpi_handle_list_replace(9)
• acpi_handle_list_free(9)
• acpi_device_dep(9)
• acpi_evaluate_ost(9)
• acpi_handle_path(9)
• acpi_handle_printk(9)
• __acpi_handle_debug(9)
• acpi_evaluation_failure_warn(9)
• acpi_has_method(9)
• acpi_evaluate_ej0(9)
• acpi_evaluate_lck(9)
• acpi_evaluate_dsm(9)
• acpi_check_dsm(9)
• acpi_dev_uid_to_integer(9)
• acpi_dev_found(9)
• acpi_dev_present(9)
• acpi_dev_get_next_match_dev(9)
• acpi_dev_get_first_match_dev(9)
• acpi_reduced_hardware(9)
• acpi_dev_is_video_device(9)
• acpi_match_platform_list(9)

okurrr that’s the page, bestie! 🫶 Source/version: ./drivers/acpi ✨ Date: October 2026 🎀 Page: acpi_evaluate_reg(9) 💅