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为什么我增加一个设备，总是有错啊，

下面是我的程序，帮忙看看，谢谢

void test_addDevice(void) { if(iosInit(0,0,"DGJ"==ERROR)) logMsg("ioInit fail\n",0,0,0,0,0,0); else logMsg("ioInit success\n",0,0,0,0,0,0);

if(iosDrvInstall(NULL,NULL,T_open,NULL,NULL,NULL,NULL)==ERROR) logMsg("drvInstall fail\n",0,0,0,0,0,0); else logMsg("drvInstall success\n",0,0,0,0,0,0);;

if(iosDevAdd(&tt_dev.Header,"DGJ",6)==ERROR) logMsg("Dev Add failed\n",0,0,0,0,0,0); else logMsg("Dev Add success\n",0,0,0,0,0,0);

}