getmajor(D3)getmajor(D3)NAMEgetmajor - get internal major device number
SYNOPSIS
#include <sys/types.h>
#include <sys/ddi.h>
major_t getmajor(dev_t dev);
Arguments
dev Internal device number.
DESCRIPTION
The getmajor function extracts the internal major number from a device
number.
Return Values
The internal major number.
USAGE
No validity checking is performed. If dev is invalid, an invalid number
is returned.
See getemajor(D3) for an explanation of external and internal major
numbers.
Level
Initialization, Base or Interrupt.
Synchronization Constraints
Does not sleep.
Driver-defined basic locks, read/write locks, and sleep locks may be held
across calls to this function.
REFERENCESetoimajor(D3), getemajor(D3), geteminor(D3), getminor(D3), makedevice(D3)
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