that more than one caller may be assigned to the same aperture.\r
It may be possible that a single hardware aperture may be used for more than\r
one device. This function tracks the number of times that each aperture is\r
that more than one caller may be assigned to the same aperture.\r
It may be possible that a single hardware aperture may be used for more than\r
one device. This function tracks the number of times that each aperture is\r