基于OHCI的USB主机 ―― UFI写扇区代码

/**  * 写磁盘扇区命令  * @param sect 物理扇区号  * @param *buf 数据缓冲区指针  * @return 0 - 成功  */ short ufiWriteSect( DWORD sect, BYTE *buf) {     WRITE_10 *write10;     CBW *cbw;       // 设置 Bulk-Only 协议参数     cbw = &ufiCmdRunning. cbw ;     cbw-> dCBW_Signature = CBW_SIGNATURE;     cbw-> dCBW_Tag = 0x60a624de;     cbw-> dCBW_DataXferLen = 512;     cbw-> bCBW_Flag =0x00;     cbw-> bCBW_LUN =0;     cbw-> bCBW_CDBLen = 16; //sizeof(CDB_RBC);       // 设置 UFI 命令参数     write10 = &(cbw-> cdbRBC . ufiWrite10 );     write10-> OperationCode = 0x2A;     write10-> LBA_0 = byteInInt(sect, 0);     write10-> LBA_1 = byteInInt(sect, 1);     write10-> LBA_2 = byteInInt(sect, 2);     write10-> LBA_3 = byteInInt(sect, 3);     write10-> XferLen_0 = 0x01;     write10-> XferLen_1 = 0x00;       // 设置状态扫描函数所需要的参数     ufiCmdRunning. funUfiCmd = bulkWrite;     ufiCmdRunning. pBuf = buf;     ufiCmdRunning. state = UFI_STATE_BEGIN;       // 通过 Bulk 端口发送写命令     bulkWrite(( unsigned char *)&ufiCmdRunning. cbw , buf, ( unsigned char *)&ufiCmdRunning. csw );       return 0; }