drivers/media/test-drivers/vivid/vivid-vid-common.h

File Facts

System

Linux kernel

Corpus path

drivers/media/test-drivers/vivid/vivid-vid-common.h

Extension

.h

Size

1763 bytes

Lines

42

Domain

Driver Families

Bucket

drivers/media

Inferred role

Driver Families: implementation source

Status

source 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _VIVID_VID_COMMON_H_
#define _VIVID_VID_COMMON_H_

typedef int (*fmtfunc)(struct file *file, void *priv, struct v4l2_format *f);

/*
 * Conversion function that converts a single-planar format to a
 * single-plane multiplanar format.
 */
void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt);
int fmt_sp2mp_func(struct file *file, void *priv,
		struct v4l2_format *f, fmtfunc func);

extern const struct v4l2_dv_timings_cap vivid_dv_timings_cap;

const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat);

struct vivid_dev *vivid_input_is_connected_to(struct vivid_dev *dev);
struct vivid_dev *vivid_output_is_connected_to(struct vivid_dev *dev);
bool vivid_vid_can_loop(struct vivid_dev *dev);
void vivid_send_source_change(struct vivid_dev *dev, unsigned int type);
void vivid_send_input_source_change(struct vivid_dev *dev, unsigned int input_index);

int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r);

int vivid_enum_fmt_vid(struct file *file, void  *priv, struct v4l2_fmtdesc *f);
int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id);
int vidioc_g_dv_timings(struct file *file, void *priv, struct v4l2_dv_timings *timings);
int vidioc_enum_dv_timings(struct file *file, void *priv, struct v4l2_enum_dv_timings *timings);
int vidioc_dv_timings_cap(struct file *file, void *priv, struct v4l2_dv_timings_cap *cap);
int vidioc_g_edid(struct file *file, void *priv, struct v4l2_edid *edid);
int vidioc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub);

#endif

Annotation

• Atlas domain: Driver Families / drivers/media.
• Implementation status: source 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.