Labels:text | screenshot | display | software OCR: CONTROL OF DATA FLOW (CON'T) DEVICE DRIVER COMMANDS DESCRIPTION DATA PACKETS HARDWARE INTERRUPT DEVICE GENERATED AN INTERRUPT. PLAYED POD GETS GET NEXT BUFFER () .AST USED - CURRENT CONTROL IN INTERRUPT HANDLEA INTERRUPT CURRENTH, NEXT H TRANSFER NEXT BUFFER TO DE VICE CURRENT NEXT TIME SHDReport (LASY USED) SAVE INDEX JUST USED, INCREMENT IOBuff INDEXES DOCHDRESdWille (WRITE) RETURN BUFFER BACK TO AUDIO STREAM HANDLER LAST NEXT CURRENT AUDIO STREAM HANDLER SENDS ANOTHER BUFFER END OF INTERRUPT NEXT CURRENT Devica OS/2 Driver Conference Figure 4. Data streaming at interrupt time :
