drivers/gpio/gpio-sodaville.c

File Facts

System

Linux kernel

Corpus path

drivers/gpio/gpio-sodaville.c

Extension

.c

Size

5714 bytes

Lines

254

Domain

Driver Families

Bucket

drivers/gpio

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/errno.h
• linux/gpio/driver.h
• linux/gpio/generic.h
• linux/init.h
• linux/interrupt.h
• linux/io.h
• linux/irq.h
• linux/kernel.h
• linux/of_irq.h
• linux/pci.h
• linux/platform_device.h

Detected Declarations

• struct sdv_gpio_chip_data
• function sdv_gpio_pub_set_type
• function sdv_gpio_pub_irq_handler
• function sdv_xlate
• function sdv_register_irqsupport
• function sdv_gpio_probe

Annotated Snippet

static struct pci_driver sdv_gpio_driver = {
	.driver = {
		.suppress_bind_attrs = true,
	},
	.name = DRV_NAME,
	.id_table = sdv_gpio_pci_ids,
	.probe = sdv_gpio_probe,
};
builtin_pci_driver(sdv_gpio_driver);

Annotation

• Immediate include surface: `linux/errno.h`, `linux/gpio/driver.h`, `linux/gpio/generic.h`, `linux/init.h`, `linux/interrupt.h`, `linux/io.h`, `linux/irq.h`, `linux/kernel.h`.
• Detected declarations: `struct sdv_gpio_chip_data`, `function sdv_gpio_pub_set_type`, `function sdv_gpio_pub_irq_handler`, `function sdv_xlate`, `function sdv_register_irqsupport`, `function sdv_gpio_probe`.
• Atlas domain: Driver Families / drivers/gpio.
• Implementation status: pattern 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.