OS-9 Device Descriptor and Configuration Module Reference
OS-9 Device Descriptor and Configuration Module Reference OS-9 Device Descriptor and Configuration Module Reference
3SCFTMDevice Descriptors MICROWAREdd_classDD_CLASSEditMod Labels2-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 SCF//DESC/config.des (Figure 3-3).Available ValuesDevice class available values are defined in the header file, io.h, andin Table 3-10.Table 3-10 dd_class Available ValuesDescription Macro EditModSequential access device DC_SEQ 0x0001Random access device DC_RND 0x0002202 OS-9 Device Descriptor and Configuration Module Reference
SCF Device DescriptorsSCF Description Block Fields3The following section contains the SCF description block fields in theorder they appear during an interactive EditMod session. Definedfields can appear in a different order in config.des.Table 3-11 SCF Description Block FieldsFieldoutdev_nameDescription File MacroOUTDEVNAMEOS-9 Device Descriptor and Configuration Module Reference 203
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3SCFTM<strong>Device</strong> <strong>Descriptor</strong>s MICROWAREdd_classDD_CLASSEditMod Labels2-device descriptor data definitions8-device class (sequential or r<strong>and</strong>om)DescriptionUsed to identify the class of the device, whether it is r<strong>and</strong>om orsequential access.Port Generic Default ValueMacroDC_SEQEditMod0x1Port Specific Override ValueRefer to SCF//DESC/config.des (Figure 3-3).Available Values<strong>Device</strong> class available values are defined in the header file, io.h, <strong>and</strong>in Table 3-10.Table 3-10 dd_class Available ValuesDescription Macro EditModSequential access device DC_SEQ 0x0001R<strong>and</strong>om access device DC_RND 0x0002202 <strong>OS</strong>-9 <strong>Device</strong> <strong>Descriptor</strong> <strong>and</strong> <strong>Configuration</strong> <strong>Module</strong> <strong>Reference</strong>
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