drivers/usb/host/ehci-exynos.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/ehci-exynos.c

Extension

.c

Size

7809 bytes

Lines

324

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/clk.h
• linux/dma-mapping.h
• linux/io.h
• linux/kernel.h
• linux/module.h
• linux/of.h
• linux/gpio/consumer.h
• linux/phy/phy.h
• linux/platform_device.h
• linux/usb.h
• linux/usb/hcd.h
• ehci.h

Detected Declarations

• struct exynos_ehci_hcd
• function exynos_ehci_get_phy
• function exynos_ehci_phy_enable
• function exynos_ehci_phy_disable
• function exynos_setup_vbus_gpio
• function exynos_ehci_probe
• function exynos_ehci_remove
• function exynos_ehci_suspend
• function exynos_ehci_resume
• function ehci_exynos_init
• function ehci_exynos_cleanup
• module init ehci_exynos_init

Annotated Snippet

module_init(ehci_exynos_init);

static void __exit ehci_exynos_cleanup(void)
{
	platform_driver_unregister(&exynos_ehci_driver);
}
module_exit(ehci_exynos_cleanup);

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS("platform:exynos-ehci");
MODULE_AUTHOR("Jingoo Han");
MODULE_AUTHOR("Joonyoung Shim");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/clk.h`, `linux/dma-mapping.h`, `linux/io.h`, `linux/kernel.h`, `linux/module.h`, `linux/of.h`, `linux/gpio/consumer.h`, `linux/phy/phy.h`.
• Detected declarations: `struct exynos_ehci_hcd`, `function exynos_ehci_get_phy`, `function exynos_ehci_phy_enable`, `function exynos_ehci_phy_disable`, `function exynos_setup_vbus_gpio`, `function exynos_ehci_probe`, `function exynos_ehci_remove`, `function exynos_ehci_suspend`, `function exynos_ehci_resume`, `function ehci_exynos_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.