drivers/usb/storage/protocol.h

File Facts

System

Linux kernel

Corpus path

drivers/usb/storage/protocol.h

Extension

.h

Size

1655 bytes

Lines

43

Domain

Driver Families

Bucket

drivers/usb

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

• enum xfer_buf_dir

Annotated Snippet

#ifndef _PROTOCOL_H_
#define _PROTOCOL_H_

/* Protocol handling routines */
extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*);
extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*);
extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*,
		struct us_data*);

/* struct scsi_cmnd transfer buffer access utilities */
enum xfer_buf_dir	{TO_XFER_BUF, FROM_XFER_BUF};

extern unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
	unsigned int buflen, struct scsi_cmnd *srb, struct scatterlist **,
	unsigned int *offset, enum xfer_buf_dir dir);

extern void usb_stor_set_xfer_buf(unsigned char *buffer,
	unsigned int buflen, struct scsi_cmnd *srb);
#endif

Annotation

• Detected declarations: `enum xfer_buf_dir`.
• Atlas domain: Driver Families / drivers/usb.
• 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.