drivers/memstick/host/jmb38x_ms.c

File Facts

System

Linux kernel

Corpus path

drivers/memstick/host/jmb38x_ms.c

Extension

.c

Size

25613 bytes

Lines

1030

Domain

Driver Families

Bucket

drivers/memstick

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/spinlock.h
• linux/interrupt.h
• linux/pci.h
• linux/dma-mapping.h
• linux/delay.h
• linux/highmem.h
• linux/memstick.h
• linux/slab.h
• linux/module.h

Detected Declarations

• struct jmb38x_ms_host
• struct jmb38x_ms
• function jmb38x_ms_read_data
• function jmb38x_ms_read_reg_data
• function jmb38x_ms_write_data
• function jmb38x_ms_write_reg_data
• function jmb38x_ms_transfer_data
• function jmb38x_ms_issue_cmd
• function jmb38x_ms_complete_cmd
• function jmb38x_ms_isr
• function jmb38x_ms_abort
• function jmb38x_ms_req_tasklet
• function jmb38x_ms_dummy_submit
• function jmb38x_ms_submit_req
• function jmb38x_ms_reset
• function jmb38x_ms_set_param
• function jmb38x_ms_pmos
• function jmb38x_ms_suspend
• function jmb38x_ms_resume
• function jmb38x_ms_count_slots
• function jmb38x_ms_free_host
• function jmb38x_ms_probe
• function jmb38x_ms_remove

Annotated Snippet

static struct pci_driver jmb38x_ms_driver = {
	.name = DRIVER_NAME,
	.id_table = jmb38x_ms_id_tbl,
	.probe = jmb38x_ms_probe,
	.remove = jmb38x_ms_remove,
	.driver.pm = &jmb38x_ms_pm_ops,
};

module_pci_driver(jmb38x_ms_driver);

MODULE_AUTHOR("Alex Dubov");
MODULE_DESCRIPTION("JMicron jmb38x MemoryStick driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, jmb38x_ms_id_tbl);

Annotation

• Immediate include surface: `linux/spinlock.h`, `linux/interrupt.h`, `linux/pci.h`, `linux/dma-mapping.h`, `linux/delay.h`, `linux/highmem.h`, `linux/memstick.h`, `linux/slab.h`.
• Detected declarations: `struct jmb38x_ms_host`, `struct jmb38x_ms`, `function jmb38x_ms_read_data`, `function jmb38x_ms_read_reg_data`, `function jmb38x_ms_write_data`, `function jmb38x_ms_write_reg_data`, `function jmb38x_ms_transfer_data`, `function jmb38x_ms_issue_cmd`, `function jmb38x_ms_complete_cmd`, `function jmb38x_ms_isr`.
• Atlas domain: Driver Families / drivers/memstick.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.