drivers/usb/fotg210/fotg210-core.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/fotg210/fotg210-core.c

Extension

.c

Size

5777 bytes

Lines

221

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.
• 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/bitops.h
• linux/clk.h
• linux/device.h
• linux/mfd/syscon.h
• linux/module.h
• linux/of.h
• linux/platform_device.h
• linux/regmap.h
• linux/string_choices.h
• linux/usb.h
• linux/usb/otg.h
• fotg210.h

Detected Declarations

• function fotg210_gemini_init
• function fotg210_vbus
• function fotg210_probe
• function fotg210_remove
• function fotg210_init
• function fotg210_cleanup
• module init fotg210_init

Annotated Snippet

module_init(fotg210_init);

static void __exit fotg210_cleanup(void)
{
	platform_driver_unregister(&fotg210_driver);
	if (IS_ENABLED(CONFIG_USB_FOTG210_HCD))
		fotg210_hcd_cleanup();
}
module_exit(fotg210_cleanup);

MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("FOTG210 Dual Role Controller Driver");

Annotation

• Immediate include surface: `linux/bitops.h`, `linux/clk.h`, `linux/device.h`, `linux/mfd/syscon.h`, `linux/module.h`, `linux/of.h`, `linux/platform_device.h`, `linux/regmap.h`.
• Detected declarations: `function fotg210_gemini_init`, `function fotg210_vbus`, `function fotg210_probe`, `function fotg210_remove`, `function fotg210_init`, `function fotg210_cleanup`, `module init fotg210_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.