PCI_DEVICE_SUB(9)

✨ NAME ✨

okay so welcome to PCI_DEVICE_SUB(9) from the Kernel API Manual — this is the macro used to describe a specific PCI device with subsystem info. It's giving “device match, but make it extra specific,” and honestly? iconic. 💖

🦋 SYNOPSIS 🦋

PCI_DEVICE_SUB (vend , dev , subvend , subdev );

🎀 ARGUMENTS 🎀

• vend — the 16 bit PCI Vendor ID. yes bestie, 16 whole bits. ✨
• dev — the 16 bit PCI Device ID. another iconic 16 bit moment. 💅
• subvend — the 16 bit PCI Subvendor ID. subsystem info has entered the chat. 🦋
• subdev — the 16 bit PCI Subdevice ID. the final little 16 bit detail. 🎀

💅 DESCRIPTION 💅

This macro is used to create a struct pci_device_id that matches a specific device with subsystem information. That's the whole vibe: specific device, plus subsystem info, wrapped up in one macro. no cap. 🫶

🌈 SEE ALSO 🌈

bestie, there is a lot of related lore here — go read these too:

• Kernel file: ./include/linux/pci.h
• enum pci_interrupt_pin(9)
• pci_channel_state_t(9)
• pci_is_bridge(9)
• pci_is_vga(9)
• pci_is_display(9)
• struct pci_driver(9)
• PCI_DEVICE(9)
• PCI_DEVICE_DRIVER_OVERRIDE(9)
• PCI_DRIVER_OVERRIDE_DEVICE_VFIO(9)
• PCI_DEVICE_CLASS(9)
• PCI_VDEVICE(9)
• PCI_VDEVICE_SUB(9)
• PCI_DEVICE_DATA(9)
• pcie_capability_clear_and_set_word(9)
• pci_bus_for_each_resource(9)
• module_pci_driver(9)
• builtin_pci_driver(9)
• pci_irq_type(9)
• pci_irqd_intx_xlate(9)
• pci_resource_is_io(9)
• pci_resource_is_mem(9)
• pci_pcie_cap(9)
• pci_is_pcie(9)
• pcie_caps_reg(9)
• pci_pcie_type(9)
• pcie_find_root_port(9)
• pci_vpd_alloc(9)
• pci_vpd_find_id_string(9)
• pci_vpd_find_ro_info_keyword(9)
• pci_vpd_check_csum(9)
• pci_ari_enabled(9)
• pci_is_thunderbolt_attached(9)

made with love in ./include/linux · October 2026 · and this page is literally PCI_DEVICE_SUB(9) — periodt. 🧚💜