www.pudn.com > 嵌入式linux9应用开发祥解.rar > CharTest.C

/*CharTest.c*/ 
#include  
#include  
#include  
#include  
main() 
{ 
		int testdev; 
		int i; 
		char buf[10]; 
		testdev = open("/dev/char_dev",O_RDWR); 
		if ( testdev == -1 ) 
		{ 
		printf("Cann't open file \n"); 
		exit(0); 
		} 
		read(testdev,buf,10); 
		for (i = 0; i < 10;i++) 
		printf("%d\n",buf[i]); 
		close(testdev); 
}