drivers/media/pci/saa7146/mxb.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/saa7146/mxb.c

Extension

.c

Size

26510 bytes

Lines

879

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
• media/tuner.h
• media/v4l2-common.h
• media/i2c/saa7115.h
• linux/module.h
• linux/kernel.h
• tea6415c.h
• tea6420.h

Detected Declarations

• struct mxb_routing
• struct mxb
• function mxb_update_audmode
• function tea6420_route
• function mxb_s_ctrl
• function mxb_probe
• function mxb_init_done
• function mxb_irq_bh
• function vidioc_enum_input
• function vidioc_g_input
• function vidioc_s_input
• function vidioc_g_tuner
• function vidioc_s_tuner
• function vidioc_querystd
• function vidioc_g_frequency
• function vidioc_s_frequency
• function vidioc_enumaudio
• function vidioc_g_audio
• function vidioc_s_audio
• function vidioc_g_register
• function vidioc_s_register
• function mxb_attach
• function mxb_detach
• function std_callback
• function mxb_init_module
• function mxb_cleanup_module
• module init mxb_init_module

Annotated Snippet

module_init(mxb_init_module);
module_exit(mxb_cleanup_module);

MODULE_DESCRIPTION("video4linux-2 driver for the Siemens-Nixdorf 'Multimedia eXtension board'");
MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `media/drv-intf/saa7146_vv.h`, `media/tuner.h`, `media/v4l2-common.h`, `media/i2c/saa7115.h`, `linux/module.h`, `linux/kernel.h`, `tea6415c.h`, `tea6420.h`.
• Detected declarations: `struct mxb_routing`, `struct mxb`, `function mxb_update_audmode`, `function tea6420_route`, `function mxb_s_ctrl`, `function mxb_probe`, `function mxb_init_done`, `function mxb_irq_bh`, `function vidioc_enum_input`, `function vidioc_g_input`.
• 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.