The Scsi_Pointer Structure

The 159 variable, a structure of type 160, is described in Figure~#figscsipointer#1431>.

#figure1432#
Figure: The <#1434#> Scsi_Pointer<#1434#> Structure

The variables in this structure can be used in <#1438#> any<#1438#> way necessary in the low-level driver. Typically, 161 points to the current entry in the 162, 163 counts the number of entries remaining in the 164, 165 is used as a pointer into the buffer, and 166 counts the characters remaining in the transfer. Some host adapters require support of this detail of interaction---others can completely ignore this structure. The second set of variables provide convenient locations to store SCSI status information and various pointers and flags.