drivers/usb/misc/usb3503.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/misc/usb3503.c

Extension

.c

Size

10524 bytes

Lines

461

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/clk.h
• linux/i2c.h
• linux/gpio/consumer.h
• linux/delay.h
• linux/slab.h
• linux/module.h
• linux/platform_device.h
• linux/platform_data/usb3503.h
• linux/regmap.h

Detected Declarations

• struct usb3503
• function usb3503_connect
• function usb3503_switch_mode
• function usb3503_probe
• function usb3503_i2c_probe
• function usb3503_i2c_remove
• function usb3503_platform_probe
• function usb3503_platform_remove
• function usb3503_suspend
• function usb3503_resume
• function usb3503_i2c_suspend
• function usb3503_i2c_resume
• function usb3503_platform_suspend
• function usb3503_platform_resume
• function usb3503_init
• function usb3503_exit
• module init usb3503_init

Annotated Snippet

module_init(usb3503_init);

static void __exit usb3503_exit(void)
{
	platform_driver_unregister(&usb3503_platform_driver);
	i2c_del_driver(&usb3503_i2c_driver);
}
module_exit(usb3503_exit);

MODULE_AUTHOR("Dongjin Kim <tobetter@gmail.com>");
MODULE_DESCRIPTION("USB3503 USB HUB driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/clk.h`, `linux/i2c.h`, `linux/gpio/consumer.h`, `linux/delay.h`, `linux/slab.h`, `linux/module.h`, `linux/platform_device.h`, `linux/platform_data/usb3503.h`.
• Detected declarations: `struct usb3503`, `function usb3503_connect`, `function usb3503_switch_mode`, `function usb3503_probe`, `function usb3503_i2c_probe`, `function usb3503_i2c_remove`, `function usb3503_platform_probe`, `function usb3503_platform_remove`, `function usb3503_suspend`, `function usb3503_resume`.
• 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.