drivers/usb/misc/brcmstb-usb-pinmap.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/misc/brcmstb-usb-pinmap.c

Extension

.c

Size

8522 bytes

Lines

357

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.
• 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/init.h
• linux/types.h
• linux/module.h
• linux/platform_device.h
• linux/interrupt.h
• linux/io.h
• linux/device.h
• linux/of.h
• linux/kernel.h
• linux/kdebug.h
• linux/gpio/consumer.h

Detected Declarations

• struct out_pin
• struct in_pin
• struct brcmstb_usb_pinmap_data
• function pinmap_set
• function pinmap_unset
• function sync_in_pin
• function brcmstb_usb_pinmap_ovr_isr
• function brcmstb_usb_pinmap_gpio_isr
• function get_pin_counts
• function parse_pins
• function sync_all_pins
• function brcmstb_usb_pinmap_probe
• function brcmstb_usb_pinmap_init
• module init brcmstb_usb_pinmap_init

Annotated Snippet

module_init(brcmstb_usb_pinmap_init);
MODULE_AUTHOR("Al Cooper <alcooperx@gmail.com>");
MODULE_DESCRIPTION("Broadcom USB Pinmap Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/init.h`, `linux/types.h`, `linux/module.h`, `linux/platform_device.h`, `linux/interrupt.h`, `linux/io.h`, `linux/device.h`, `linux/of.h`.
• Detected declarations: `struct out_pin`, `struct in_pin`, `struct brcmstb_usb_pinmap_data`, `function pinmap_set`, `function pinmap_unset`, `function sync_in_pin`, `function brcmstb_usb_pinmap_ovr_isr`, `function brcmstb_usb_pinmap_gpio_isr`, `function get_pin_counts`, `function parse_pins`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration implementation candidate.
• 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.