drivers/staging/greybus/fw-core.c

File Facts

System

Linux kernel

Corpus path

drivers/staging/greybus/fw-core.c

Extension

.c

Size

8038 bytes

Lines

312

Domain

Driver Families

Bucket

drivers/staging

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/firmware.h
• linux/greybus.h
• firmware.h
• spilib.h

Detected Declarations

• struct gb_fw_core
• function gb_fw_spi_connection_init
• function gb_fw_spi_connection_exit
• function gb_fw_core_probe
• function gb_fw_core_disconnect
• function fw_core_init
• function fw_core_exit
• module init fw_core_init

Annotated Snippet

module_init(fw_core_init);

static void __exit fw_core_exit(void)
{
	greybus_deregister(&gb_fw_core_driver);
	cap_exit();
	fw_mgmt_exit();
}
module_exit(fw_core_exit);

MODULE_ALIAS("greybus:firmware");
MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
MODULE_DESCRIPTION("Greybus Firmware Bundle Driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/firmware.h`, `linux/greybus.h`, `firmware.h`, `spilib.h`.
• Detected declarations: `struct gb_fw_core`, `function gb_fw_spi_connection_init`, `function gb_fw_spi_connection_exit`, `function gb_fw_core_probe`, `function gb_fw_core_disconnect`, `function fw_core_init`, `function fw_core_exit`, `module init fw_core_init`.
• Atlas domain: Driver Families / drivers/staging.
• 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.