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getminor(9f) [posix man page]

getminor(9F)						   Kernel Functions for Drivers 					      getminor(9F)

NAME
getminor - get minor device number SYNOPSIS
#include <sys/types.h> #include <sys/mkdev.h> #include <sys/ddi.h> minor_t getminor(dev_t dev); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
dev Device number. DESCRIPTION
getminor() extracts the minor number from a device number. RETURN VALUES
The minor number. CONTEXT
getminor() can be called from user or interrupt context. EXAMPLES
See the getmajor(9F) manual page for an example of how to use getminor(). SEE ALSO
getmajor(9F), makedevice(9F) Writing Device Drivers WARNINGS
No validity checking is performed. If dev is invalid, an invalid number is returned. SunOS 5.10 11 Apr 1991 getminor(9F)

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getmajor(9F)						   Kernel Functions for Drivers 					      getmajor(9F)

NAME
getmajor - get major device number 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). PARAMETERS
dev Device number. DESCRIPTION
getmajor() extracts the major number from a device number. RETURN VALUES
The major number. CONTEXT
getmajor() can be called from user or interrupt context. EXAMPLES
Example 1: Using getmajor() 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
cmn_err(9F), getminor(9F), makedevice(9F) Writing Device Drivers WARNINGS
No validity checking is performed. If dev is invalid, an invalid number is returned. SunOS 5.10 11 Apr 1991 getmajor(9F)

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