drivers/media/pci/saa7146/hexium_gemini.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/saa7146/hexium_gemini.c

Extension

.c

Size

11641 bytes

Lines

427

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

• media/drv-intf/saa7146_vv.h
• linux/module.h
• linux/kernel.h

Detected Declarations

• struct hexium_data
• struct hexium
• function hexium_init_done
• function hexium_set_input
• function hexium_set_standard
• function vidioc_enum_input
• function vidioc_g_input
• function vidioc_s_input
• function hexium_attach
• function hexium_detach
• function std_callback
• function hexium_init_module
• function hexium_cleanup_module
• module init hexium_init_module

Annotated Snippet

module_init(hexium_init_module);
module_exit(hexium_cleanup_module);

MODULE_DESCRIPTION("video4linux-2 driver for Hexium Gemini frame grabber cards");
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `media/drv-intf/saa7146_vv.h`, `linux/module.h`, `linux/kernel.h`.
• Detected declarations: `struct hexium_data`, `struct hexium`, `function hexium_init_done`, `function hexium_set_input`, `function hexium_set_standard`, `function vidioc_enum_input`, `function vidioc_g_input`, `function vidioc_s_input`, `function hexium_attach`, `function hexium_detach`.
• 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.