1. USBùҪܣ
   USBùҪڿÿģʽӦóļֿڣrndis, adb, at, log, mass_storageȣ
   ͨUSBϱİβUEVENTϢáҿͨATƿٿػCPTлȡ

2. ƽ̨漰
1NVusb_devices_factoryusb_devices_amt
     nvfactory, amt⼸ģʽĶ˿ϡ
2nvusb_acm_num_factoryusb_acm_num_amt
     nvfactory, amt⼸ģʽacmĸ
3lunָ֧֧8Ϊ2G Flash汾׼
4޸̣߳ueventϢĴһ߳ɡ
5nvneed_support_cp_udiskV2͹ܻǷ֧TUлܡ
6nvneed_support_cdrom_step2ڵڶ׶öʱǷöcdrom