The 124 structure, as shown in
Figure~#figscsicmnd#1411>, is used by the high-level code to specify a
SCSI command for execution by the low-level code. Many variables in the
125 structure can be ignored by the low-level device
driver---other variables, however, are extremely important.
#figure1412#
Figure: The <#1414#> Scsi_Cmnd<#1414#> Structure