🚀 go-pugleaf

I use the following code (and it works ok!)

STORAGE_PROPERTY_QUERY StoragePropertyQuery;
STORAGE_ADAPTER_DESCRIPTOR StorageAdapterDescriptor;
BOOL Success;
DWORD NumberOfBytesReturned;

ZeroMemory(&StoragePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY));
ZeroMemory(&StorageAdapterDescriptor, sizeof(STORAGE_ADAPTER_DESCRIPTOR));

StoragePropertyQuery.PropertyId = StorageAdapterProperty;
StoragePropertyQuery.QueryType = PropertyStandardQuery;

Success = DeviceIoControl(TempHandle, IOCTL_STORAGE_QUERY_PROPERTY, 
&StoragePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY), 
&StorageAdapterDescriptor, sizeof(STORAGE_ADAPTER_DESCRIPTOR), 
&NumberOfBytesReturned, NULL);

Generally speaking, if 'Success' turns out to be False, you should drop back 
down to the legacy IOCTL_SCSI_GET_CAPABILITIES command.

It won't get you your bustype, but it'll give you the figure to use for your 
maximum transfer window.

I also advise you to VirtualAlloc a buffer somewhere for all your I/O 
transfers. When buffers are not correctly alligned, DeviceIoControl often 
fails with the error you're getting - that's where the 'AlignmentMask' value 
comes in.