include/linux/usb/phy_companion.h

File Facts

System

Linux kernel

Corpus path

include/linux/usb/phy_companion.h

Extension

.h

Size

693 bytes

Lines

26

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/usb/otg.h

Detected Declarations

• struct phy_companion

Annotated Snippet

struct phy_companion {

	/* effective for A-peripheral, ignored for B devices */
	int	(*set_vbus)(struct phy_companion *x, bool enabled);

	/* for B devices only:  start session with A-Host */
	int	(*start_srp)(struct phy_companion *x);
};

#endif /* __DRIVERS_PHY_COMPANION_H */

Annotation

• Immediate include surface: `linux/usb/otg.h`.
• Detected declarations: `struct phy_companion`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.