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Darwin 0.2 Driver Kit

device driver startup - single dev_type device

	get all dev_ports assigned to us via bootstrap_info() 
		and bootstrap_look_up();
	thisUnit = 0;
	for each dev_port {
		dev_type = dev_port_to_type();
		if dev_type bad
			dev_port_destroy();
		else { 
			[thisDevice probe:dev_port 
				type:dev_type 
				unit:thisUnit++];
		}
	}
	
SCSI device
	get all dev_ports assigned to us via bootstrap_info() 
		and bootstrap_look_up();
	thisUnit = 0;
	for each dev_port {
		dev_type = dev_port_to_type();
		if dev_type bad
			dev_port_destroy();
		else {
			[thisDevice probe:dev_port 
				type:dev_type 
				unit:thisUnit++];
			[SCSIDisk probe:SCSIControllerId];
		}
	}

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