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Linux driver development User’s Manual Edwin Version: <2.4> Date: 8/3/2004 4. Programming with comedi 4.1 Relationship between user program and device driver 1.1 config and allocate resource io irq etc. Comedi driver 1.2 attach() AI AO DI subdevide access module User progra comedi_config open() read & write DO subdevice free resource Confidential release() Advantech Automation Corporation, 2001 close() Page 15 of 41
