I would like to know whether MFI authentication is required to connect to Apple MAP protocol. Thank you very much!

My user space driver need to call a function: clock_get_calendar_microtime(&currentTime_sec,&currentTime_usec); I hope Xcode DriverKit library can include "kern/clock.h"

I am working on SCSIControllerDriverKit UserSpaceDriver-UserCreateTargetForID.ips.txt I UserSpaceDriver-UserCreateTargetForID.rtf.txt OUserSCSIParallelInterfaceController My dext had follow this site description: https://developer.apple.com/documentation/scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/3567474-usercreatetargetforid But when the program calls: UserCreateTargetForID(scsi_target,targetOSDictionary) got panic.

I am woriking on SCSIControllerDriverKit IOUserSCSIParallelInterfaceController When I hot-plug my PCIe SCSI controller, the controller works normally, but when I hot remove the PCIe SCSI controller, the driverkit crashes. Thread 3 Crashed:: Dispatch queue: MyUserSpaceDriver-Default UserSpaceDriver-PCIe-hotremove.rtf.txt UserSpaceDriver-PCIe-hotremove.ips.txt

Hi there! There was a presentation of the SCSI support in DriverKit on 2020 WWDC: https://developer.apple.com/videos/play/wwdc2020/10210/ Currently, the Xcode 12.4 (latest) has nothing regarding SCSI in DriverKit folders. Documentation says it is still in beta: https://developer.apple.com/documentation/scsicontrollerdriverkit So I've downloaded xcode 12.5 beta, where the driverkit 20.4 beta resides (according to https://developer.apple.com/support/xcode/) And what we have there? Just Kernel.framework/Versions/A/Headers/DriverKit/IOReturn.h 65:#define sub_iokit_scsi err_sub(16) And nothing more! So, the question is: do we have any way to use SCSI devices now on BigSur? Could I develop something for it with DriverKit, or should I use kext-approach for now, and wait for SCSI DriverKit support to be released indeed?