drivers/scsi/arm/powertec.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/arm/powertec.c

Extension

.c

Size

12313 bytes

Lines

453

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/blkdev.h
• linux/kernel.h
• linux/string.h
• linux/ioport.h
• linux/proc_fs.h
• linux/delay.h
• linux/interrupt.h
• linux/init.h
• linux/dma-mapping.h
• linux/pgtable.h
• asm/dma.h
• asm/ecard.h
• asm/io.h
• scsi/scsi.h
• scsi/scsi_cmnd.h
• scsi/scsi_device.h
• scsi/scsi_eh.h
• scsi/scsi_host.h
• scsi/scsi_tcq.h
• fas216.h
• arm_scsi.h
• scsi/scsicam.h

Detected Declarations

• struct powertec_info
• function powertecscsi_irqenable
• function powertecscsi_irqdisable
• function powertecscsi_terminator_ctl
• function powertecscsi_intr
• function powertecscsi_dma_setup
• function powertecscsi_dma_stop
• function powertecscsi_set_proc_info
• function powertecscsi_show_info
• function powertecscsi_show_term
• function powertecscsi_store_term
• function powertecscsi_probe
• function powertecscsi_remove
• function powertecscsi_init
• function powertecscsi_exit
• module init powertecscsi_init

Annotated Snippet

module_init(powertecscsi_init);
module_exit(powertecscsi_exit);

MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("Powertec SCSI driver");
module_param_array(term, int, NULL, 0);
MODULE_PARM_DESC(term, "SCSI bus termination");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/blkdev.h`, `linux/kernel.h`, `linux/string.h`, `linux/ioport.h`, `linux/proc_fs.h`, `linux/delay.h`, `linux/interrupt.h`.
• Detected declarations: `struct powertec_info`, `function powertecscsi_irqenable`, `function powertecscsi_irqdisable`, `function powertecscsi_terminator_ctl`, `function powertecscsi_intr`, `function powertecscsi_dma_setup`, `function powertecscsi_dma_stop`, `function powertecscsi_set_proc_info`, `function powertecscsi_show_info`, `function powertecscsi_show_term`.
• Atlas domain: Driver Families / drivers/scsi.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.