drivers/net/can/sja1000/peak_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/net/can/sja1000/peak_pci.c

Extension

.c

Size

21016 bytes

Lines

782

Domain

Driver Families

Bucket

drivers/net

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.
• 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/kernel.h
• linux/module.h
• linux/interrupt.h
• linux/netdevice.h
• linux/delay.h
• linux/pci.h
• linux/io.h
• linux/i2c.h
• linux/i2c-algo-bit.h
• linux/can.h
• linux/can/dev.h
• sja1000.h

Detected Declarations

• struct peak_pciec_card
• struct peak_pci_chan
• struct peak_pciec_chan
• struct peak_pciec_card
• function pita_set_scl_highz
• function pita_set_sda_highz
• function peak_pciec_init_pita_gpio
• function pita_setsda
• function pita_setscl
• function pita_getsda
• function pita_getscl
• function peak_pciec_write_pca9553
• function peak_pciec_led_work
• function peak_pciec_set_leds
• function peak_pciec_start_led_work
• function peak_pciec_stop_led_work
• function peak_pciec_init_leds
• function peak_pciec_leds_exit
• function peak_pciec_write_reg
• function peak_pciec_probe
• function peak_pciec_remove
• function peak_pciec_probe
• function peak_pciec_remove
• function peak_pci_write_reg
• function peak_pci_post_irq
• function peak_pci_probe
• function register_sja1000dev
• function peak_pci_remove

Annotated Snippet

static struct pci_driver peak_pci_driver = {
	.name = DRV_NAME,
	.id_table = peak_pci_tbl,
	.probe = peak_pci_probe,
	.remove = peak_pci_remove,
};

module_pci_driver(peak_pci_driver);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/interrupt.h`, `linux/netdevice.h`, `linux/delay.h`, `linux/pci.h`, `linux/io.h`, `linux/i2c.h`.
• Detected declarations: `struct peak_pciec_card`, `struct peak_pci_chan`, `struct peak_pciec_chan`, `struct peak_pciec_card`, `function pita_set_scl_highz`, `function pita_set_sda_highz`, `function peak_pciec_init_pita_gpio`, `function pita_setsda`, `function pita_setscl`, `function pita_getsda`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern 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.