我是 SCSI 编程的新手，因此很抱歉提出基本问题。我通过 6 字节 CDB 向磁带设备发送了 SCSI 查询命令
ccb = (Exec_IO_CCB *)( 缓冲区 + header_size );
ccb->ccb_length = sizeof(Exec_IO_CCB);
ccb->cam_opcode = 0x1;
ccb->connect_id = 0;
ccb->sense_buf_ptr = (long)(header_size + ccb->ccb_length);
ccb->sense_buf_length = MAX_SENSE_LEN;
ccb->time_out = CAM_TIMEOUT；
ccb->cdb_length = 6;
/* 对于 INQUIRY 设置 cam_flags 和 cdb[0] */
ccb->cam_flags = NO_DATA;
ccb->cdb[0] = 查询；/* 0x12 用于查询命令的 SCSI 操作码 */
ccb->cdb[1] = 0;
ccb->cdb[2] = 0;
ccb->cdb[3] = 0;
ccb->cdb[4] = 3200;
ccb->cdb[5] = 0;
SCSI 命令成功。如何捕获 INQUIRY 命令的输出，以便我可以获得供应商 ID / 产品 ID ？
我已按如下方式声明了 Execute I/O SCSI 缓冲区
类型定义结构{
long ccb_address; /* Address of this CCB */
short ccb_length; /* CAM Control Block Length */
char cam_opcode; /* CAM Operation Code */
char status; /* CAM Status */
long connect_id; /* Connect ID - no fields supported */
long cam_flags; /* CAM Flags */
long pd_pointer; /* Peripheral driver pointer */
long next_ccb_ptr; /* Next CCB Pointer */
long req_map_info; /* Request mapping information */
long call_on_comp; /* Callback on completion */
long data_buf_ptr; /* Data Buffer Pointer */
long data_xfer_length; /* Data transfer length */
long sense_buf_ptr; /* Sense information buffer pointer */
char sense_buf_length; /* Sense information buffer length */
char cdb_length; /* Command Descriptor Block (CDB) **
** length */
short num_sg_entries; /* Number of scatter/gather entries */
long vendor_unique; /* Vendor Unique field */
char scsi_status; /* SCSI status */
char auto_resid; /* Auto sense residual length */
short reserved; /* Reserved */
long resid_length; /* Residual length */
char cdb[12]; /* Command Descriptor Block (CDB) */
long time_out; /* Time-out value */
long msg_buf_ptr; /* Message buffer pointer */
short msg_buf_length; /* Message buffer length */
short vu_flags; /* Vendor-unique flags */
char tag_queue_act; /* Tagged Queue action */
char tag_id; /* Tag ID (target only) */
char init_id; /* Initiator ID (target only) */
char reserved2; /* Reserved */
} 执行_IO_CCB;
这种结构永远不会捕获 SCSI 输出？
我已将查询结构声明如下。但我不确定 Inquire 命令将如何填充 Inquiry_Data 结构数据？
类型定义结构{
short data_valid; /* Flag that indicates whether or not the */
/* structure has been filled in with */
/* inquiry data from the device. */
byte periph_qual;
byte periph_dev_type;
byte rmb;
byte iso_version;
byte ecma_version;
byte ansi_version;
byte resp_data_format;
byte rel_adr;
byte sync;
byte linked;
byte cmd_que;
byte sft_rst;
char vendor_id[9];
char prod_id[17];
char prod_rev[5];
char reserved;
} 查询数据；