drivers/usb/gadget/udc/amd5536udc_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/gadget/udc/amd5536udc_pci.c

Extension

.c

Size

4948 bytes

Lines

217

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/device.h
• linux/dmapool.h
• linux/interrupt.h
• linux/io.h
• linux/irq.h
• linux/module.h
• linux/moduleparam.h
• linux/prefetch.h
• linux/pci.h
• amd5536udc.h

Detected Declarations

• function udc_pci_remove
• function udc_pci_probe

Annotated Snippet

static struct pci_driver udc_pci_driver = {
	.name =		name,
	.id_table =	pci_id,
	.probe =	udc_pci_probe,
	.remove =	udc_pci_remove,
};
module_pci_driver(udc_pci_driver);

MODULE_DESCRIPTION(UDC_MOD_DESCRIPTION);
MODULE_AUTHOR("Thomas Dahlmann");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/device.h`, `linux/dmapool.h`, `linux/interrupt.h`, `linux/io.h`, `linux/irq.h`, `linux/module.h`, `linux/moduleparam.h`, `linux/prefetch.h`.
• Detected declarations: `function udc_pci_remove`, `function udc_pci_probe`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.