drivers/media/pci/ivtv/ivtv-fileops.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/ivtv/ivtv-fileops.h

Extension

.h

Size

1112 bytes

Lines

33

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

file operation functions
    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@kernel.org>

 */

#ifndef IVTV_FILEOPS_H
#define IVTV_FILEOPS_H

/* Testing/Debugging */
int ivtv_v4l2_open(struct file *filp);
ssize_t ivtv_v4l2_read(struct file *filp, char __user *buf, size_t count,
		      loff_t * pos);
ssize_t ivtv_v4l2_write(struct file *filp, const char __user *buf, size_t count,
		       loff_t * pos);
int ivtv_v4l2_close(struct file *filp);
__poll_t ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait);
__poll_t ivtv_v4l2_dec_poll(struct file *filp, poll_table * wait);
int ivtv_start_capture(struct ivtv_open_id *id);
void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end);
int ivtv_start_decoding(struct ivtv_open_id *id, int speed);
void ivtv_mute(struct ivtv *itv);
void ivtv_unmute(struct ivtv *itv);

/* Utilities */
/* Shared with ivtv-alsa module */
int ivtv_claim_stream(struct ivtv_open_id *id, int type);
void ivtv_release_stream(struct ivtv_stream *s);

#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.