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ddi_getiminor() extracts the minor number from
a device number. This call should be used only for device numbers that have
been passed to the kernel from the user space through opaque interfaces
such as the contents of ioctl(9E)
and putmsg(2). The
device numbers passed in using standard device entry points must continue
to be interpreted using the getminor(9F)
interface. This new interface is used to translate between user visible
device numbers and in kernel device numbers. The two numbers may differ
in a clustered system.
For certain bus types, you can call this DDI function
from a high-interrupt context. These types include ISA, EISA, and SBus buses. See sysbus(4), isa(4), eisa(4), and sbus(4) for
details.
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