wmi_instance_count(9)

✨ wmi_instance_count(9) ✨

okay so bestie, welcome to the Kernel API Manual section 9 entry for wmi_instance_count 💅 this one is short and sweet and honestly kind of iconic for it.

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💖 NAME 💖

wmi_instance_count — get the number of WMI object instances 🎀

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🌸 SYNOPSIS 🌸

int wmi_instance_count (const char *guid_string );

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🦋 ARGUMENTS 🦋

• guid_string — a 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba ✨ lowkey it's just a GUID, that's the whole vibe.

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🍓 DESCRIPTION 🍓

Get the number of WMI object instances. that's it. that's the function. no cap 🫶

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🌈 RETURN 🌈

Returns the number of WMI object instances, or a negative error code if things do not go off 💀 so like, always vibe check your return value before you trust it, iykyk.

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👑 SEE ALSO 👑

Kernel file ./drivers/platform/wmi/core.c — and the whole friend group of related calls, gathered here so you never have to go looking:

• 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)
• 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)

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fr fr go read those too, they all ate 🧚

mwah, that's the page! this lil gem lives in ./drivers/platform/wmi, dated October 2026, and the manual tag is wmi_instance_count(9) — catch you in the next one bestie, stay slay 💜🌸✨