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Getting the IODTNVRAM instance
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Getting the IODTNVRAM instance

  • Subject: Getting the IODTNVRAM instance
  • From: Antoine Missout <email@hidden>
  • Date: Wed, 29 Jun 2011 12:07:13 -0400
Hi,

Using the following code, can I assume that I'll always get the IODTNVRAM instance under normal circumstance ? It runs in the start() function of my kext.

Thanks,
Antoine


--------------------------

OSDictionary *matchingDictionary = IOService::serviceMatching("IODTNVRAM");
uint64_t nanosecondsTimeout = 20 * 1000000000ULL;
IOService::waitForMatchingService(matchingDictionary , nanosecondsTimeout);


IORegistryEntry * re = IORegistryEntry::fromPath("/options", gIODTPlane);
IODTNVRAM * nvram = OSDynamicCast(IODTNVRAM, re);


if (nvram)
{
printf("nvram module found\n");
}
else
{
printf("nvram module not found\n");
}


if (re) re->release();

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