drivers/usb/host/xhci-pci-renesas.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/xhci-pci-renesas.c

Extension

.c

Size

16811 bytes

Lines

667

Domain

Driver Families

Bucket

drivers/usb

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/firmware.h
• linux/module.h
• linux/pci.h
• linux/slab.h
• linux/unaligned.h
• xhci.h
• xhci-trace.h
• xhci-pci.h

Detected Declarations

• function renesas_fw_download_image
• function renesas_fw_verify
• function renesas_check_rom
• function renesas_check_rom_state
• function renesas_fw_check_running
• function renesas_fw_download
• function renesas_rom_erase
• function renesas_setup_rom
• function renesas_load_fw
• function renesas_xhci_check_request_fw
• function xhci_pci_renesas_probe

Annotated Snippet

static struct pci_driver xhci_renesas_pci_driver = {
	.name =		"xhci-pci-renesas",
	.id_table =	pci_ids,

	.probe =	xhci_pci_renesas_probe,
	.remove =	xhci_pci_remove,

	.shutdown = 	usb_hcd_pci_shutdown,
	.driver = {
		.pm = pm_ptr(&usb_hcd_pci_pm_ops),
	},
};
module_pci_driver(xhci_renesas_pci_driver);

MODULE_DESCRIPTION("Renesas xHCI PCI Host Controller Driver");
MODULE_FIRMWARE(RENESAS_FW_NAME);
MODULE_IMPORT_NS("xhci");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/firmware.h`, `linux/module.h`, `linux/pci.h`, `linux/slab.h`, `linux/unaligned.h`, `xhci.h`, `xhci-trace.h`.
• Detected declarations: `function renesas_fw_download_image`, `function renesas_fw_verify`, `function renesas_check_rom`, `function renesas_check_rom_state`, `function renesas_fw_check_running`, `function renesas_fw_download`, `function renesas_rom_erase`, `function renesas_setup_rom`, `function renesas_load_fw`, `function renesas_xhci_check_request_fw`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: pattern implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.