if (pvRTS != NULL) {//RTS_need, non PCF mode
                        //Fill RsvTime
                        if (pvRrvTime) {
-                               PSRrvTime_ab pBuf = (PSRrvTime_ab)pvRrvTime;
+                               struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-                               pBuf->wRTSTxRrvTime = cpu_to_le16((unsigned short)s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate));//2:RTSTxRrvTime_aa, 0:5GHz
-                               pBuf->wTxRrvTime = cpu_to_le16((unsigned short)s_uGetTxRsvTime(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK));//0:OFDM
+                               buf->rts_rrv_time = cpu_to_le16((u16)s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate));
+                               buf->rrv_time = cpu_to_le16((u16)s_uGetTxRsvTime(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK));
                        }
                        //Fill RTS
                        s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
                } else if (pvRTS == NULL) {//RTS_needless, non PCF mode
                        //Fill RsvTime
                        if (pvRrvTime) {
-                               PSRrvTime_ab pBuf = (PSRrvTime_ab)pvRrvTime;
+                               struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-                               pBuf->wTxRrvTime = cpu_to_le16((unsigned short)s_uGetTxRsvTime(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK)); //0:OFDM
+                               buf->rrv_time = cpu_to_le16((u16)s_uGetTxRsvTime(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK));
                        }
                }
        } else if (byPktType == PK_TYPE_11B) {
                if ((pvRTS != NULL)) {//RTS_need, non PCF mode
                        //Fill RsvTime
                        if (pvRrvTime) {
-                               PSRrvTime_ab pBuf = (PSRrvTime_ab)pvRrvTime;
+                               struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-                               pBuf->wRTSTxRrvTime = cpu_to_le16((unsigned short)s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate));//0:RTSTxRrvTime_bb, 1:2.4GHz
-                               pBuf->wTxRrvTime = cpu_to_le16((unsigned short)s_uGetTxRsvTime(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK));//1:CCK
+                               buf->rts_rrv_time = cpu_to_le16((u16)s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate));
+                               buf->rrv_time = cpu_to_le16((u16)s_uGetTxRsvTime(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK));
                        }
                        //Fill RTS
                        s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
                } else { //RTS_needless, non PCF mode
                        //Fill RsvTime
                        if (pvRrvTime) {
-                               PSRrvTime_ab pBuf = (PSRrvTime_ab)pvRrvTime;
+                               struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-                               pBuf->wTxRrvTime = cpu_to_le16((unsigned short)s_uGetTxRsvTime(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK)); //1:CCK
+                               buf->rrv_time = cpu_to_le16((u16)s_uGetTxRsvTime(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK));
                        }
                }
        }
 
                if (byFBOption == AUTO_FB_NONE) {
                        if (bRTS == true) {
-                               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
-                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
-                               pvRTS = (PSRTS_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
+                               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
+                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
+                               pvRTS = (PSRTS_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
                                pvCTS = NULL;
-                               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(PSRrvTime_ab) + cbMICHDR + sizeof(SRTS_ab));
-                               cbHeaderLength = wTxBufSize + sizeof(PSRrvTime_ab) + cbMICHDR + sizeof(SRTS_ab) + sizeof(STxDataHead_ab);
+                               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(SRTS_ab));
+                               cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(SRTS_ab) + sizeof(STxDataHead_ab);
                        } else { //RTS_needless, need MICHDR
-                               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
-                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
+                               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
+                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
                                pvRTS = NULL;
                                pvCTS = NULL;
-                               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
-                               cbHeaderLength = wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR + sizeof(STxDataHead_ab);
+                               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
+                               cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(STxDataHead_ab);
                        }
                } else {
                        // Auto Fall Back
                        if (bRTS == true) {//RTS_need
-                               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
-                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
-                               pvRTS = (PSRTS_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
+                               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
+                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
+                               pvRTS = (PSRTS_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
                                pvCTS = NULL;
-                               pvTxDataHd = (PSTxDataHead_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(PSRrvTime_ab) + cbMICHDR + sizeof(SRTS_a_FB));
-                               cbHeaderLength = wTxBufSize + sizeof(PSRrvTime_ab) + cbMICHDR + sizeof(SRTS_a_FB) + sizeof(STxDataHead_a_FB);
+                               pvTxDataHd = (PSTxDataHead_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(SRTS_a_FB));
+                               cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(SRTS_a_FB) + sizeof(STxDataHead_a_FB);
                        } else { //RTS_needless
-                               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
-                               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
+                               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
+                               pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
                                pvRTS = NULL;
                                pvCTS = NULL;
-                               pvTxDataHd = (PSTxDataHead_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
-                               cbHeaderLength = wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR + sizeof(STxDataHead_a_FB);
+                               pvTxDataHd = (PSTxDataHead_a_FB) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
+                               cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(STxDataHead_a_FB);
                        }
                } // Auto Fall Back
        }
                cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
                                        sizeof(SCTS) + sizeof(STxDataHead_g);
        } else { // 802.11a/b packet
-               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
+               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
                pMICHDR = NULL;
                pvRTS = NULL;
                pCTS = NULL;
-               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
-               cbHeaderSize = wTxBufSize + sizeof(SRrvTime_ab) + sizeof(STxDataHead_ab);
+               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
+               cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + sizeof(STxDataHead_ab);
        }
 
        memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderSize - wTxBufSize));
 
        } else {//802.11a/b packet
 
-               pvRrvTime = (PSRrvTime_ab) (pbyTxBufferAddr + wTxBufSize);
-               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab));
+               pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
+               pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr +
+                               wTxBufSize + sizeof(struct vnt_rrv_time_ab));
                pvRTS = NULL;
                pvCTS = NULL;
-               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr + wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR);
-               cbHeaderSize = wTxBufSize + sizeof(SRrvTime_ab) + cbMICHDR + sizeof(STxDataHead_ab);
+               pvTxDataHd = (PSTxDataHead_ab) (pbyTxBufferAddr +
+                       wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
+               cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
+                                       cbMICHDR + sizeof(STxDataHead_ab);
 
        }