drivers/video/fbdev/core/sysfillrect.c

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/core/sysfillrect.c

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/core/sysfillrect.c
Extension
.c
Size
746 bytes
Lines
31
Domain
Driver Families
Bucket
drivers/video
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 *	Copyright (C)  2025 Zsolt Kajtar (soci@c64.rulez.org)
 */

#include <linux/export.h>
#include <linux/module.h>
#include <linux/fb.h>
#include <linux/bitrev.h>
#include <asm/types.h>

#ifdef CONFIG_FB_SYS_REV_PIXELS_IN_BYTE
#define FB_REV_PIXELS_IN_BYTE
#endif

#include "sysmem.h"
#include "fb_fillrect.h"

void sys_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
{
	if (!(p->flags & FBINFO_VIRTFB))
		fb_warn_once(p, "%s: framebuffer is not in virtual address space.\n", __func__);

	fb_fillrect(p, rect);
}
EXPORT_SYMBOL(sys_fillrect);

MODULE_AUTHOR("Zsolt Kajtar <soci@c64.rulez.org>");
MODULE_DESCRIPTION("Virtual memory packed pixel framebuffer area fill");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes