drivers/media/pci/hws/hws_v4l2_ioctl.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/hws/hws_v4l2_ioctl.h

Extension

.h

Size

1825 bytes

Lines

37

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

• media/v4l2-ctrls.h
• linux/fs.h

Detected Declarations

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

Annotated Snippet

#ifndef HWS_V4L2_IOCTL_H
#define HWS_V4L2_IOCTL_H

#include <media/v4l2-ctrls.h>
#include <linux/fs.h>

extern const struct v4l2_ctrl_ops hws_ctrl_ops;

int hws_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap);
int hws_vidioc_enum_fmt_vid_cap(struct file *file, void *priv_fh, struct v4l2_fmtdesc *f);
int hws_vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt);
int hws_vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f);
int hws_vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorms);
int hws_vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms);
int hws_vidioc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *setfps);
int hws_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i);
int hws_vidioc_g_input(struct file *file, void *priv, unsigned int *i);
int hws_vidioc_s_input(struct file *file, void *priv, unsigned int i);
int hws_vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *a);
int hws_vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a);
int hws_vidioc_dv_timings_cap(struct file *file, void *fh,
			      struct v4l2_dv_timings_cap *cap);
int hws_vidioc_s_dv_timings(struct file *file, void *fh,
			    struct v4l2_dv_timings *timings);

int hws_vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *a);
int hws_vidioc_g_dv_timings(struct file *file, void *fh,
			    struct v4l2_dv_timings *timings);
int hws_vidioc_enum_dv_timings(struct file *file, void *fh,
			       struct v4l2_enum_dv_timings *edv);
int hws_vidioc_query_dv_timings(struct file *file, void *fh,
				struct v4l2_dv_timings *timings);
int hws_vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f);

#endif

Annotation

• Immediate include surface: `media/v4l2-ctrls.h`, `linux/fs.h`.
• 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.