OS-9 Device Descriptor and Configuration Module Reference

4SBFTMDevice Descriptors MICROWAREdd_classDD_CLASSEditMod Labels1-module header2-device descriptor data definitions8-device class (sequential or random)DescriptionUsed to identify the class of the device, whether it is random orsequential access.Port Generic Default ValueMacroDC_SEQEditMod0x1Port Specific Override ValueRefer to SBF//DESC/config.des (Figure 4-3).Available ValuesDevice class available values are defined in the header file, io.h, andin Table 4-10.Table 4-10 dd_class Available ValuesDescription Macro EditModSequential access device DC_SEQ 0x0001Random access device DC_RND 0x0002430 OS-9 Device Descriptor and Configuration Module Reference