drivers/scsi/sr.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/sr.c

Extension

.c

Size

25801 bytes

Lines

1012

Domain

Driver Families

Bucket

drivers/scsi

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/module.h
• linux/fs.h
• linux/kernel.h
• linux/mm.h
• linux/bio.h
• linux/compat.h
• linux/string.h
• linux/errno.h
• linux/cdrom.h
• linux/interrupt.h
• linux/init.h
• linux/major.h
• linux/blkdev.h
• linux/blk-pm.h
• linux/mutex.h
• linux/slab.h
• linux/pm_runtime.h
• linux/uaccess.h
• linux/unaligned.h
• scsi/scsi.h
• scsi/scsi_dbg.h
• scsi/scsi_device.h
• scsi/scsi_driver.h
• scsi/scsi_cmnd.h
• scsi/scsi_eh.h
• scsi/scsi_host.h
• scsi/scsi_ioctl.h
• scsi_logging.h
• sr.h

Detected Declarations

• function sr_runtime_suspend
• function sr_get_events
• function sr_check_events
• function open
• function sr_done
• function sr_init_command
• function sr_revalidate_disk
• function sr_block_open
• function sr_block_release
• function sr_block_ioctl
• function sr_block_check_events
• function sr_free_disk
• function sr_open
• function sr_release
• function get_sectorsize
• function get_capabilities
• function sr_packet
• function sr_read_cdda_bpc
• function sr_remove
• function init_sr
• function exit_sr
• module init init_sr

Annotated Snippet

module_init(init_sr);
module_exit(exit_sr);
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/fs.h`, `linux/kernel.h`, `linux/mm.h`, `linux/bio.h`, `linux/compat.h`, `linux/string.h`, `linux/errno.h`.
• Detected declarations: `function sr_runtime_suspend`, `function sr_get_events`, `function sr_check_events`, `function open`, `function sr_done`, `function sr_init_command`, `function sr_revalidate_disk`, `function sr_block_open`, `function sr_block_release`, `function sr_block_ioctl`.
• Atlas domain: Driver Families / drivers/scsi.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.