drivers/staging/greybus/greybus_authentication.h

File Facts

System

Linux kernel

Corpus path

drivers/staging/greybus/greybus_authentication.h

Extension

.h

Size

2121 bytes

Lines

75

Domain

Driver Families

Bucket

drivers/staging

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/ioctl.h
• linux/types.h

Detected Declarations

• struct cap_ioc_get_endpoint_uid
• struct cap_ioc_get_ims_certificate
• struct cap_ioc_authenticate

Annotated Snippet

struct cap_ioc_get_endpoint_uid {
	__u8			uid[8];
} __packed;

struct cap_ioc_get_ims_certificate {
	__u32			certificate_class;
	__u32			certificate_id;

	__u8			result_code;
	__u32			cert_size;
	__u8			certificate[CAP_CERTIFICATE_MAX_SIZE];
} __packed;

struct cap_ioc_authenticate {
	__u32			auth_type;
	__u8			uid[8];
	__u8			challenge[32];

	__u8			result_code;
	__u8			response[64];
	__u32			signature_size;
	__u8			signature[CAP_SIGNATURE_MAX_SIZE];
} __packed;

#define CAP_IOCTL_BASE			'C'
#define CAP_IOC_GET_ENDPOINT_UID	_IOR(CAP_IOCTL_BASE, 0, struct cap_ioc_get_endpoint_uid)
#define CAP_IOC_GET_IMS_CERTIFICATE	_IOWR(CAP_IOCTL_BASE, 1, struct cap_ioc_get_ims_certificate)
#define CAP_IOC_AUTHENTICATE		_IOWR(CAP_IOCTL_BASE, 2, struct cap_ioc_authenticate)

#endif /* __GREYBUS_AUTHENTICATION_USER_H */

Annotation

• Immediate include surface: `linux/ioctl.h`, `linux/types.h`.
• Detected declarations: `struct cap_ioc_get_endpoint_uid`, `struct cap_ioc_get_ims_certificate`, `struct cap_ioc_authenticate`.
• Atlas domain: Driver Families / drivers/staging.
• Implementation status: source 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.