The following are I/O object request priority values.
Value
Name
0x00010000
MM_LOW_PRIORITY
0x00020000
MM_HIGH_PRIORITY
0x00030000
MM_TOP_PRIORITY
0x00100000
MM_ACCELERATED
0x00200000
MM_RETURN_RAW_COMPLETION
0x00400000
MM_USING_PERFERRED_UNIT_SIZE
0x00800000
MM_SCATTER_GATHER_REQUEST
0x01000000
MM_HARDWARE_READ_AFTER_WRITE
0x04000000
MM_DELAYED_EXECUTE
0x10000000
MM_P0_MESSAGE
0x20000000
MM_BLOCKING_CALLBACK
0x80000000
MM_WRITE_BACK