acpi_dev_resource_io(9)

🌸 NAME 🌸

okay so bestie, this is acpi_dev_resource_io(9), from the Kernel API Manual, and it is literally here to extract ACPI I/O resource information. no cap. ✨

✨ SYNOPSIS ✨

bool acpi_dev_resource_io (struct acpi_resource *ares , struct resource
*res );

🎀 ARGUMENTS 🎀

• ares — the input ACPI resource object. it's giving “source material” 💅
• res — the output generic resource object. this is where the info goes, periodt. 🫶

🦋 DESCRIPTION 🦋

so the whole vibe check here: it checks whether the given ACPI resource object represents an I/O resource. if that is the case, it uses the information in it to populate the generic resource object pointed to by res. that is the assignment, and it ate. 💖

👑 RETURN 👑

1. false with res->flags setting to zero: not the expected resource type. 🙈
2. false with IORESOURCE_DISABLED in res->flags: valid unassigned resource. 💀
3. true: valid assigned resource. 🔥

💜 SEE ALSO 💜

kernel file ./drivers/acpi/resource.c — iconic. also these besties:

• acpi_dev_resource_memory(9)
• acpi_dev_resource_address_space(9)
• acpi_dev_resource_ext_address_space(9)
• acpi_dev_irq_flags(9)
• acpi_dev_get_irq_type(9)
• acpi_dev_resource_interrupt(9)
• acpi_dev_free_resource_list(9)
• acpi_dev_get_resources(9)
• acpi_dev_get_dma_resources(9)
• acpi_dev_get_memory_resources(9)
• acpi_dev_filter_resource_type(9)
• acpi_resource_consumer(9)

xoxo, your kernel bestie 💖 — source/version: ./drivers/acpi; date: October 2026; page: acpi_dev_resource_io(9). periodt. 🎀