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Name

Synopsis

#include <sys/types.h>
#include <sys/mkdev.h>
#include <sys/ddi.h>

major_t getmajor(dev_t dev);

Interface Level

Architecture independent level 1 (DDI/DKI).

Arguments

dev

Device number.

Description

Return Values

Context

getmajor() can be called from user or interrupt context.

Example

The following example shows both the getmajor() and getminor(9F) functions used in a debug cmn_err(9F) statement to return the major and minor numbers for the device supported by the driver.

dev_t dev;
#ifdef DEBUG 
cmn_err(CE_NOTE,"Driver Started.  Major# = %d,
    Minor# = %d", getmajor(dev), getminor(dev));
#endif

See Also

Warnings

Table of Contents

• Name
• Synopsis
• Interface Level
• Arguments
• Description
• Return Values
• Context
• Example
• See Also
• Warnings