Apple

Hi Folks,

We are writing a mass storage driver, in which we want to read some data from one partition and write the same data on another partition within the single write() routine of driver.

The code snippet for getting all the IOMedia objects in a single write() routine is as follows.

void MyDriver::write(IOService* provider, UInt64 byteStart, IOMemoryDescriptor* buffer, IOStorageCompletion completion)

{

OSDictionary* services = IOService::serviceMatching(kIOMediaClass);

if(!services)

return;

OSIterator* iterator = IOService::getMatchingServices(services);

if (!iterator)

return;

while (1)

{

IOService* service = OSDynamicCast(IOService, iterator->getNextObject());

if(!service)

{

break;

}

char Name[MAX_NAME];

memset((void*)Name,0,MAX_NAME);

sprintf(Name,"%s", service->getName());

}

In while loop we are getting all IOMedia objects. But we want only specific IOMedia object.

Is there any API at kernel level to match the two IOMedia objects such as IOObjectConformsTo().

Thanks in advance.

Thanks & Regards,

Mekhala