drvkb.h~

一个以s3c2410为核心的ARM板键盘驱动程序的例子

//define cpu register
#define GPIOLEN	  		0x03          //gpio length
#define GPIOC			0x10000000    //gpio base address

#define CHARDRIVER_MAJOR	251
#define CHARDRIVER_NAME		"dtKbDriver"

unsigned char charPar;			//pass parameter
unsigned char keyIntFlag;
static unsigned char * gpioc_base;	//access addres