drivers/greybus/arpc.h

File Facts

System

Linux kernel

Corpus path

drivers/greybus/arpc.h

Extension

.h

Size

1298 bytes

Lines

64

Domain

Driver Families

Bucket

drivers/greybus

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct arpc_request_message
• struct arpc_response_message
• struct arpc_cport_connected_req
• struct arpc_cport_quiesce_req
• struct arpc_cport_clear_req
• struct arpc_cport_flush_req
• struct arpc_cport_shutdown_req
• enum arpc_result

Annotated Snippet

struct arpc_request_message {
	__le16	id;		/* RPC unique id */
	__le16	size;		/* Size in bytes of header + payload */
	__u8	type;		/* RPC type */
	__u8	data[];	/* ARPC data */
} __packed;

struct arpc_response_message {
	__le16	id;		/* RPC unique id */
	__u8	result;		/* Result of RPC */
} __packed;

/* ARPC requests */
#define ARPC_TYPE_CPORT_CONNECTED		0x01
#define ARPC_TYPE_CPORT_QUIESCE			0x02
#define ARPC_TYPE_CPORT_CLEAR			0x03
#define ARPC_TYPE_CPORT_FLUSH			0x04
#define ARPC_TYPE_CPORT_SHUTDOWN		0x05

struct arpc_cport_connected_req {
	__le16 cport_id;
} __packed;

struct arpc_cport_quiesce_req {
	__le16 cport_id;
	__le16 peer_space;
	__le16 timeout;
} __packed;

struct arpc_cport_clear_req {
	__le16 cport_id;
} __packed;

struct arpc_cport_flush_req {
	__le16 cport_id;
} __packed;

struct arpc_cport_shutdown_req {
	__le16 cport_id;
	__le16 timeout;
	__u8 phase;
} __packed;

#endif	/* __ARPC_H */

Annotation

• Detected declarations: `struct arpc_request_message`, `struct arpc_response_message`, `struct arpc_cport_connected_req`, `struct arpc_cport_quiesce_req`, `struct arpc_cport_clear_req`, `struct arpc_cport_flush_req`, `struct arpc_cport_shutdown_req`, `enum arpc_result`.
• Atlas domain: Driver Families / drivers/greybus.
• 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.