include/linux/vt_buffer.h

Source file repositories/reference/linux-study-clean/include/linux/vt_buffer.h

File Facts

System
Linux kernel
Corpus path
include/linux/vt_buffer.h
Extension
.h
Size
1127 bytes
Lines
50
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _LINUX_VT_BUFFER_H_
#define _LINUX_VT_BUFFER_H_

#include <linux/string.h>

#if IS_ENABLED(CONFIG_VGA_CONSOLE)
#include <asm/vga.h>
#endif

#ifndef VT_BUF_HAVE_RW
#define scr_writew(val, addr) (*(addr) = (val))
#define scr_readw(addr) (*(addr))
#endif

#ifndef VT_BUF_HAVE_MEMSETW
static inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
{
	memset16(s, c, count / 2);
}
#endif

#ifndef VT_BUF_HAVE_MEMCPYW
static inline void scr_memcpyw(u16 *d, const u16 *s, unsigned int count)
{
	memcpy(d, s, count);
}
#endif

#ifndef VT_BUF_HAVE_MEMMOVEW
static inline void scr_memmovew(u16 *d, const u16 *s, unsigned int count)
{
	memmove(d, s, count);
}
#endif

#endif

Annotation

Implementation Notes