drivers/staging/media/tegra-video/video.c

File Facts

System

Linux kernel

Corpus path

drivers/staging/media/tegra-video/video.c

Extension

.c

Size

4515 bytes

Lines

186

Domain

Driver Families

Bucket

drivers/staging

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

• linux/host1x.h
• linux/module.h
• linux/platform_device.h
• media/v4l2-event.h
• video.h

Detected Declarations

• function Copyright
• function tegra_v4l2_dev_notify
• function host1x_video_probe
• function host1x_video_remove
• function host1x_video_init
• function host1x_video_exit
• module init host1x_video_init

Annotated Snippet

module_init(host1x_video_init);

static void __exit host1x_video_exit(void)
{
	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
	host1x_driver_unregister(&host1x_video_driver);
}
module_exit(host1x_video_exit);

MODULE_AUTHOR("Sowjanya Komatineni <skomatineni@nvidia.com>");
MODULE_DESCRIPTION("NVIDIA Tegra Host1x Video driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/host1x.h`, `linux/module.h`, `linux/platform_device.h`, `media/v4l2-event.h`, `video.h`.
• Detected declarations: `function Copyright`, `function tegra_v4l2_dev_notify`, `function host1x_video_probe`, `function host1x_video_remove`, `function host1x_video_init`, `function host1x_video_exit`, `module init host1x_video_init`.
• Atlas domain: Driver Families / drivers/staging.
• 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.