drivers/usb/host/ehci-omap.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/ehci-omap.c

Extension

.c

Size

7736 bytes

Lines

302

Domain

Driver Families

Bucket

drivers/usb

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/module.h
• linux/io.h
• linux/platform_device.h
• linux/slab.h
• linux/usb/ulpi.h
• linux/pm_runtime.h
• linux/clk.h
• linux/usb.h
• linux/usb/hcd.h
• linux/of.h
• linux/dma-mapping.h
• ehci.h
• linux/platform_data/usb-omap.h

Detected Declarations

• struct omap_hcd
• function ehci_write
• function start
• function usb_ehci_hcd_omap_probe
• function ehci_omap_init
• function ehci_omap_cleanup
• module init ehci_omap_init

Annotated Snippet

module_init(ehci_omap_init);

static void __exit ehci_omap_cleanup(void)
{
	platform_driver_unregister(&ehci_hcd_omap_driver);
}
module_exit(ehci_omap_cleanup);

MODULE_ALIAS("platform:ehci-omap");
MODULE_AUTHOR("Texas Instruments, Inc.");
MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>");

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/io.h`, `linux/platform_device.h`, `linux/slab.h`, `linux/usb/ulpi.h`, `linux/pm_runtime.h`, `linux/clk.h`.
• Detected declarations: `struct omap_hcd`, `function ehci_write`, `function start`, `function usb_ehci_hcd_omap_probe`, `function ehci_omap_init`, `function ehci_omap_cleanup`, `module init ehci_omap_init`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration 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.