C程序从连接到系统的USB设备读取数据

输出日志：

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struct termios oldtio,newtio;

// open port...
// save existing attributes
tcgetattr(fd,&oldtio);  

// set attributes - these flags may change for your device
#define BAUDRATE B9600 
memset(&newtio,0x00,sizeof(newtio));  
newtio.c_cflag = BAUDRATE | CRTSCTS | CS8 | CLOCAL | CREAD;   
newtio.c_iflag = IGNPAR | ICRNL;          
newtio.c_oflag = 0;  

tcflush(fd,TCIFLUSH);  
tcsetattr(fd,TCSANOW,&newtio); 

//reset attributes
tcsetattr(fd,&oldtio); 

我这里有一个粗略的工作例子…… http://file-hub.com/cmd:thread/142300

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