Hi all , I have been trying to communicate with my device in my Big Sur, I am able to open IOUSBHostDevice in start function , But not getting Interface(IOUSBHostInterface), IOUSBHostDevice ::CreateInterfaceIterator(); is returning Null value, Unable to use getchildIterator(). Any Help is appreciated

Hi all, I am trying to write device driver, Inherited IOUserSerial class, In start function I have "opened device-----Opened Interface----copyPipe-----pipe-IO(), I have also tried pipe-IO in Tx Available() function , -- IO function returning device "not ready Error". any help is appriciated,

Hi , I am trying to write dext code for my existing Kext , i see "IOMemoryDescriptor::withAddress" being used , I dont find any alternatives in "DriverKit", Is there any others ways to achieve this, Any input is appriciated , Thanks, revan