[Disksim-users] Update:new_disk.pl and dx_track errors

[hdiakos at csd.uoc.gr]

After some debugging I found out that the error is generated from file  
build_scsi.c in line 153.Adding some diagnostic code the ioctl  
function returns -1 and I get the errno error description  
"Inappropiate ioctl for device".Here is the modified code:

   ictl_val = 0;
   int res;
   errno = 0;
   if ( 0 > ( res = ioctl(fd,SG_SET_FORCE_PACK_ID,&ictl_val) ) ) {
     printf("Printing FORCE_PACK_ID:%0x\n", SG_SET_FORCE_PACK_ID);
     printf("ioctl returned:%d ERRNO returned:%s\n", res, strerror(errno));
     error_handler("Could not set FORCE_PACK_ID  on device %s \n",devname);
   }

Does anyone have any idea as to what am I doing wrong?It perfectly  
finds devices such as sg0 which is a CD/DVD-ROM but it can't find any  
device labeled sdaX or sdbX...