Variables in the Scsi_Host structure

In general, the variables in the 18 structure are not used until after the 19 function (see section #secdetect#1266>) is called. Therefore, any variables which cannot be assigned before host adapter detection should be assigned during detection. This situation might occur, for example, if a single driver provided support for several host adapters with very similar characteristics. Some of the parameters in the 20 structure might then depend on the specific host adapter detected.