drivers/media/test-drivers/visl/visl-core.c
Source file repositories/reference/linux-study-clean/drivers/media/test-drivers/visl/visl-core.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/media/test-drivers/visl/visl-core.c- Extension
.c- Size
- 14298 bytes
- Lines
- 581
- 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
linux/debugfs.hlinux/module.hlinux/platform_device.hmedia/v4l2-ctrls.hmedia/v4l2-device.hmedia/v4l2-ioctl.hmedia/v4l2-mem2mem.hvisl.hvisl-dec.hvisl-debugfs.hvisl-video.h
Detected Declarations
function visl_control_num_elemsfunction visl_device_releasefunction visl_init_ctrlsfunction visl_openfunction visl_releasefunction visl_probefunction visl_removefunction visl_dev_releasefunction visl_exitfunction visl_initmodule init visl_init
Annotated Snippet
module_init(visl_init);
module_exit(visl_exit);Annotation
- Immediate include surface: `linux/debugfs.h`, `linux/module.h`, `linux/platform_device.h`, `media/v4l2-ctrls.h`, `media/v4l2-device.h`, `media/v4l2-ioctl.h`, `media/v4l2-mem2mem.h`, `visl.h`.
- Detected declarations: `function visl_control_num_elems`, `function visl_device_release`, `function visl_init_ctrls`, `function visl_open`, `function visl_release`, `function visl_probe`, `function visl_remove`, `function visl_dev_release`, `function visl_exit`, `function visl_init`.
- 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.