| #include <scsi/sg.h> |
| |
| |
| #define READ10_REPLY_LEN 512 |
| #define READ10_CMD_LEN 10 |
| |
| // read 0x102 blocks from block # 0x3040506 |
| // [just to to you where the fields are] |
| .............. |
| |
| unsigned char r10CmdBlk [READ10_CMD_LEN] = |
| {0x28, 0, 3, 4, 5, 6, 0, 1, 2, 0}; |
| sg_io_hdr_t io_hdr; |
| unsigned char inBuff[READ10_REPLY_LEN]; |
| unsigned char sense_buffer[32]; |
| |
| /* Prepare READ_10 command */ |
| memset(&io_hdr, 0, sizeof(sg_io_hdr_t)); |
| io_hdr.interface_id = 'S'; |
| io_hdr.cmd_len = sizeof(r10CmdBlk); |
| io_hdr.mx_sb_len = sizeof(sense_buffer); |
| io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; |
| io_hdr.dxfer_len = READ10_REPLY_LEN; |
| io_hdr.dxferp = inBuff; |
| io_hdr.cmdp = r10CmdBlk; |
| io_hdr.sbp = sense_buffer; |
| io_hdr.timeout = 20000; /* 20000 millisecs == 20 seconds */ |
| |
| if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) { |
| perror("READ_10 SG_IO ioctl error"); |
| ..... |
| } |
| // block should now be in 'inBuff' |
