given a HANDLE to \\.\Scsi0: obtained with CreateFile, how could i determin
the maximum number of targets that a given bus may hold,
IOCTL_SCSI_GET_CAPABILITIES doesn't tell me. also, when doing
IOCTL_SCSI_GET_INQUIRY_DATA i get NumberOfBuses field. I always get 1, even
though i query a two channel controller... how come? it seams like each
channel gets its own \\.\ScsiX: file.