major - get major component of device number (extension)

Syntax

#include <sys/types.h> #include <sys/mkdev.h> major_t major(dev_t device);

Description major() returns the major component of the device number for a named device.

Return val.	Formatted device number
		if successful.
	NODEV	if an error occurs. errno is set to indicate the error.
Errors	major() will fail if:
	EINVAL	The device argument is NODEV, or the major component of device is too large.
See also	makedev(), minor(), mknod(), stat().