rv = IORegistryEntryCreateCFProperties( ioDev /*parent2*/,
&cfProperties, kCFAllocatorDefault, kNilOptions);
if (rv != kIOReturnSuccess || !cfProperties) {
rv = IORegistryEntryCreateCFProperties( ioDev /*parent2*/,
&cfProperties, kCFAllocatorDefault, kNilOptions);
if (rv != kIOReturnSuccess || !cfProperties) {