Hi3518A+RT3070(WIFI)问题

按照网上诸贤的方法编译，出现如下问题：
# insmod rt3070sta.ko
rtusb init rt2870 --->
===>rt2870_probe()!
--> RTMPAllocAdapterBlock


=== pAd = c5088000, size = 509936 ===

--> RTMPAllocTxRxRingMemory
<-- RTMPAllocTxRxRingMemory, Status=0
<-- RTMPAllocAdapterBlock, Status=0
NumEndpoints=7
BULK IN MaxPacketSize = 512
EP address = 0x81
BULK OUT MaxPacketSize = 512
EP address = 0x 1  
BULK OUT MaxPacketSize = 512
EP address = 0x 2  
BULK OUT MaxPacketSize = 512
EP address = 0x 3  
BULK OUT MaxPacketSize = 512
EP address = 0x 4  
BULK OUT MaxPacketSize = 512
EP address = 0x 5  
BULK OUT MaxPacketSize = 512
EP address = 0x 6  
STA Driver version-2.5.0.1
time out is 30#
#
#
#
#
#
#
#
#
#
RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x1000,pAd->Flags=0x0
time out is 30#
#
#
#
#
#
#
#
#
#
RTUSB_VendorRequest failed(-110),TxFlags=0x0, ReqType=IN, Req=0x7, Idx=0x580,pAd->Flags=0x0
NVM is EFUSE
Allocate a net device with private data size=0!
Allocate net device ops success!
The name of the new ra interface is ra0...
RtmpOSNetDevAttach()--->
<---RtmpOSNetDevAttach(), ret=0
<===rt2870_probe()!
usbcore: registered new interface driver rt2870
跟踪程序，发现问题出现在这里：
do {
     RTUSB_CONTROL_MSG(pObj->pUsb_Dev, 0, Request, RequestType, Value, Index, pAd->UsbVendorReqBuf, TransferBufferLength, CONTROL_TIMEOUT_JIFFIES, RET);
     if (RET < 0) {
           DBGPRINT(RT_DEBUG_OFF, ("#\n"));
           if (RET == RTMP_USB_CONTROL_MSG_ENODEV)
           {                                       
        RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST);                        break;                               
           }
           RetryCount++;
           RTMPusecDelay(5000); /* wait for 5ms*/
      }
} while((RET < 0) && (RetryCount < MAX_VENDOR_REQ_RETRY_COUNT));
好象是与USB<--->RT3070通迅失常，问题出在RTUSB_CONTROL_MSG上，不知何解？