drivers/media/rc/winbond-cir.c

File Facts

System

Linux kernel

Corpus path

drivers/media/rc/winbond-cir.c

Extension

.c

Size

33696 bytes

Lines

1221

Domain

Driver Families

Bucket

drivers/media

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.
• 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/module.h
• linux/pnp.h
• linux/interrupt.h
• linux/timer.h
• linux/leds.h
• linux/spinlock.h
• linux/pci_ids.h
• linux/io.h
• linux/bitrev.h
• linux/slab.h
• linux/wait.h
• linux/sched.h
• media/rc-core.h

Detected Declarations

• struct wbcir_data
• enum wbcir_bank
• enum wbcir_protocol
• enum wbcir_rxstate
• enum wbcir_txstate
• function wbcir_set_bits
• function wbcir_select_bank
• function wbcir_set_irqmask
• function wbcir_led_brightness_get
• function wbcir_led_brightness_set
• function wbcir_to_rc6cells
• function wbcir_carrier_report
• function wbcir_idle_rx
• function wbcir_irq_rx
• function wbcir_irq_tx
• function wbcir_irq_handler
• function wbcir_set_carrier_report
• function wbcir_txcarrier
• function wbcir_txmask
• function wbcir_tx
• function wbcir_shutdown
• function wbcir_set_wakeup_filter
• function wbcir_suspend
• function wbcir_init_hw
• function wbcir_resume
• function wbcir_probe
• function wbcir_remove
• function wbcir_init
• function wbcir_exit
• module init wbcir_init

Annotated Snippet

module_init(wbcir_init);
module_exit(wbcir_exit);

MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
MODULE_DESCRIPTION("Winbond SuperI/O Consumer IR Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/pnp.h`, `linux/interrupt.h`, `linux/timer.h`, `linux/leds.h`, `linux/spinlock.h`, `linux/pci_ids.h`, `linux/io.h`.
• Detected declarations: `struct wbcir_data`, `enum wbcir_bank`, `enum wbcir_protocol`, `enum wbcir_rxstate`, `enum wbcir_txstate`, `function wbcir_set_bits`, `function wbcir_select_bank`, `function wbcir_set_irqmask`, `function wbcir_led_brightness_get`, `function wbcir_led_brightness_set`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: integration 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.