drivers/media/usb/au0828/au0828-core.c

File Facts

System

Linux kernel

Corpus path

drivers/media/usb/au0828/au0828-core.c

Extension

.c

Size

21869 bytes

Lines

849

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.
• 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

• au0828.h
• au8522.h
• linux/module.h
• linux/slab.h
• linux/videodev2.h
• media/v4l2-common.h
• linux/mutex.h
• media/tuner.h

Detected Declarations

• function au0828_readreg
• function au0828_writereg
• function send_control_msg
• function recv_control_msg
• function au0828_unregister_media_device
• function au0828_usb_release
• function au0828_usb_disconnect
• function au0828_media_device_init
• function au0828_media_graph_notify
• function media_device_for_each_entity
• function au0828_is_link_shareable
• function au0828_enable_source
• function source
• function list_for_each_entry
• function au0828_disable_source
• function _close
• function au0828_media_device_register
• function list_for_each_entry
• function au0828_usb_probe
• function au0828_suspend
• function au0828_resume
• function au0828_init
• function au0828_exit
• module init au0828_init

Annotated Snippet

module_init(au0828_init);
module_exit(au0828_exit);

MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products");
MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.0.3");

Annotation

• Immediate include surface: `au0828.h`, `au8522.h`, `linux/module.h`, `linux/slab.h`, `linux/videodev2.h`, `media/v4l2-common.h`, `linux/mutex.h`, `media/tuner.h`.
• Detected declarations: `function au0828_readreg`, `function au0828_writereg`, `function send_control_msg`, `function recv_control_msg`, `function au0828_unregister_media_device`, `function au0828_usb_release`, `function au0828_usb_disconnect`, `function au0828_media_device_init`, `function au0828_media_graph_notify`, `function media_device_for_each_entity`.
• 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.

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.