drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr.c

File Facts

System

Linux kernel

Corpus path

drivers/staging/media/atomisp/pci/runtime/rmgr/src/rmgr.c

Extension

.c

Size

619 bytes

Lines

32

Domain

Driver Families

Bucket

drivers/staging

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.

Dependency Surface

• ia_css_rmgr.h

Detected Declarations

• function Copyright
• function ia_css_rmgr_uninit

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2010 - 2015, Intel Corporation.
 */

#include "ia_css_rmgr.h"

int ia_css_rmgr_init(void)
{
	int err = 0;

	err = ia_css_rmgr_init_vbuf(vbuf_ref);
	if (!err)
		err = ia_css_rmgr_init_vbuf(vbuf_write);
	if (!err)
		err = ia_css_rmgr_init_vbuf(hmm_buffer_pool);
	if (err)
		ia_css_rmgr_uninit();
	return err;
}

/*
 * @brief Uninitialize resource pool (host)
 */
void ia_css_rmgr_uninit(void)
{
	ia_css_rmgr_uninit_vbuf(hmm_buffer_pool);
	ia_css_rmgr_uninit_vbuf(vbuf_write);
	ia_css_rmgr_uninit_vbuf(vbuf_ref);
}

Annotation

• Immediate include surface: `ia_css_rmgr.h`.
• Detected declarations: `function Copyright`, `function ia_css_rmgr_uninit`.
• Atlas domain: Driver Families / drivers/staging.
• 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.