drivers/media/usb/em28xx/em28xx-input.c

File Facts

System

Linux kernel

Corpus path

drivers/media/usb/em28xx/em28xx-input.c

Extension

.c

Size

23474 bytes

Lines

935

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.
• 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

• em28xx.h
• linux/module.h
• linux/init.h
• linux/delay.h
• linux/interrupt.h
• linux/usb.h
• linux/usb/input.h
• linux/slab.h
• linux/bitrev.h

Detected Declarations

• struct em28xx_ir_poll_result
• struct em28xx_IR
• function em28xx_get_key_terratec
• function em28xx_get_key_em_haup
• function em28xx_get_key_pinnacle_usb_grey
• function em28xx_get_key_winfast_usbii_deluxe
• function default_polling_getkey
• function em2874_polling_getkey
• function Address
• function em28xx_i2c_ir_handle_key
• function em28xx_ir_handle_key
• function em28xx_ir_work
• function em28xx_ir_start
• function em28xx_ir_stop
• function em2860_ir_change_protocol
• function em2874_ir_change_protocol
• function em28xx_ir_change_protocol
• function em28xx_probe_i2c_ir
• function em28xx_query_buttons
• function em28xx_register_snapshot_button
• function em28xx_init_buttons
• function em28xx_shutdown_buttons
• function em28xx_ir_init
• function em28xx_ir_fini
• function em28xx_ir_suspend
• function em28xx_ir_resume
• function em28xx_rc_register
• function em28xx_rc_unregister
• module init em28xx_rc_register

Annotated Snippet

module_init(em28xx_rc_register);
module_exit(em28xx_rc_unregister);

Annotation

• Immediate include surface: `em28xx.h`, `linux/module.h`, `linux/init.h`, `linux/delay.h`, `linux/interrupt.h`, `linux/usb.h`, `linux/usb/input.h`, `linux/slab.h`.
• Detected declarations: `struct em28xx_ir_poll_result`, `struct em28xx_IR`, `function em28xx_get_key_terratec`, `function em28xx_get_key_em_haup`, `function em28xx_get_key_pinnacle_usb_grey`, `function em28xx_get_key_winfast_usbii_deluxe`, `function default_polling_getkey`, `function em2874_polling_getkey`, `function Address`, `function em28xx_i2c_ir_handle_key`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: integration 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.