acpi_reduced_hardware(9)

💅 acpi_reduced_hardware — bestie's guide to the "is this an ACPI-reduced-hw machine" check 🦋

okay so real talk, this one lives in the Kernel API Manual, section 9 — yes, the big-kid kernel developer section, we love to see it 👑

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✨ NAME ✨

acpi_reduced_hardware — literally just tells you whether this machine is an ACPI-reduced-hw machine or not. that's the whole job. no cap 💅

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🌸 SYNOPSIS 🌸

bool acpi_reduced_hardware (void );

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🎀 ARGUMENTS 🎀

• void — no arguments. zero. zilch. it takes nothing, it needs nothing, it's giving self-sufficient main character energy ✨

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💖 DESCRIPTION 💖

so like, when you call this, it returns true if you're running on an ACPI-reduced-hw machine, and false if you're not. that's it. that's the vibe check 🫶

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🔥 SEE ALSO 🔥

this function lives in the kernel file ./drivers/acpi/utils.c, and it's lowkey in a whole friend group of ACPI functions — here's the entire squad, no one left behind 💜:

• 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_reg(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_dev_is_video_device(9)
• acpi_match_platform_list(9)

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ok that's the whole page bestie, nothing hidden, nothing skipped 💀 go forth and check your hardware 🌈

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and that's a wrap! 🎬 this little beauty came out of ./drivers/acpi and it's stamped October 2026 — so when you're flipping through your kernel docs and you see acpi_reduced_hardware(9), you'll know exactly who she is 💅✨🍓