.IX \f4etoimajor\fP(D3DK)

NAME

etoimajor − convert external to internal major device number .IX major device number

SYNOPSIS

#include <sys/types.h>
#include <sys/ddi.h>
major_t etoimajor(major_t emaj);

ARGUMENTS

emajExternal major number. 

DESCRIPTION

etoimajor converts the external major number (emaj) to an internal major number.  See getemajor(D3DK) for a description of external and internal major numbers. 

RETURN VALUE

etoimajor returns the internal major number or NODEV if the external major number is invalid. 

LEVEL

Base or Interrupt. 

NOTES

Does not sleep. 

Driver-defined basic locks, read/write locks, and sleep locks may be held across calls to this function. 

SEE ALSO

getemajor(D3DK), geteminor(D3DK), getmajor(D3DK), getminor(D3DK), itoemajor(D3DK), makedevice(D3DK)

DDI/DKI