Hi Kevin, Thank you again for your guidance. We have an important update based on your advice. Following your suggestion to compare property configurations, we analyzed our KEXT's source code, as we could not find the relevant properties in the KEXT's IORegistryExplorer snapshot. We then attempted to replicate the KEXT's behavior in our DEXT, which has led us to a final, specific contradiction that we hope you can help us resolve. Here is a summary of our findings and final questions: 1 - KEXT Source Code Contains setProperty Calls We discovered that our KEXT's Start() function programmatically sets several IOBlockStorageCharacteristics using setProperty. The key value is: // In KEXT's Start() function: #define MAX_IO_LENGTH (512 * 1024) // 512KB setProperty(kIOMaximumByteCountWriteKey, (UInt64)MAX_IO_LENGTH, 64); // ... plus other similar properties. 2 - DEXT Fails Despite Replicating KEXT's Configuration Based on this finding and your previous advice, we implemented the following in our DEXT: We im
Topic:
App & System Services
SubTopic:
Drivers
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