pci_intx_mask_broken(9)

🎀 NAME 🎀

pci_intx_mask_broken — Test PCI_COMMAND_INTX_DISABLE writability

okay bestie, this one is straight out of the Kernel API Manual, and the function is literally called pci_intx_mask_broken 💖

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✨ SYNOPSIS ✨

int pci_intx_mask_broken (struct pci_dev *dev );

That's the whole vibe: it returns an int and takes a struct pci_dev *dev, no cap 🫶

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💅 ARGUMENTS 💅

• dev — the PCI device, obviously 💅

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🔥 DESCRIPTION 🔥

Okay so the assignment here is: test whether PCI_COMMAND_INTX_DISABLE is writable for dev ✨

And the key detail, bestie: check this at enumeration-time so you're not out here modifying PCI_COMMAND at run-time. That's the whole point, periodt 💀

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🌈 SEE ALSO 🌈

Kernel file ./drivers/pci/probe.c, plus these iconic neighbors, iykyk:

• __pci_size_bars(9)
• __pci_read_base(9)
• pcie_get_link_speed(9)
• pci_ea_fixed_busnrs(9)
• pci_ext_cfg_is_aliased(9)
• pci_cfg_space_size_ext(9)
• pci_setup_device(9)
• pcie_relaxed_ordering_enabled(9)
• pci_release_dev(9)
• pci_scan_slot(9)
• pci_scan_child_bus_extend(9)
• pci_scan_child_bus(9)
• pcibios_root_bridge_prepare(9)
• pci_rescan_bus_bridge_resize(9)
• pci_rescan_bus(9)

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xoxo, this page lives in ./drivers/pci, dated October 2026, and yes it's pci_intx_mask_broken(9) 💖✨