dma.h

来自「嵌入式系统设计与实例开发实验教材二源码 多线程应用程序设计 串行端口程序设计」· C头文件 代码 · 共 22 行

H
22
字号
#ifndef _M68K_DMA_H#define _M68K_DMA_H 1#include <linux/config.h>/* it's useless on the m68k, but unfortunately needed by the new   bootmem allocator (but this should do it for this) */#define MAX_DMA_ADDRESS PAGE_OFFSET#define MAX_DMA_CHANNELS 8extern int request_dma(unsigned int dmanr, const char * device_id);	/* reserve a DMA channel */extern void free_dma(unsigned int dmanr);	/* release it again */#ifdef CONFIG_PCIextern int isa_dma_bridge_buggy;#else#define isa_dma_bridge_buggy    (0)#endif#endif /* _M68K_DMA_H */

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?