PRINT(9E) Driver Entry Points PRINT(9E)

NAME

print - display a driver message on system console

SYNOPSIS

#include <sys/types.h>
#include <sys/errno.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>


int prefixprint(dev_t dev, char *str);

INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI). This entry point is
required for block devices.

PARAMETERS

dev
Device number.


str
Pointer to a character string describing the problem.

DESCRIPTION

The print() routine is called by the kernel when it has detected an
exceptional condition (such as out of space) in the device. To
display the message on the console, the driver should use the
cmn_err(9F) kernel function. The driver should print the message
along with any driver specific information.

RETURN VALUES

The print() routine should return 0 for success, or the appropriate
error number. The print routine can fail if the driver implemented
a non-standard print() routine that attempted to perform error
logging, but was unable to complete the logging for whatever reason.

SEE ALSO

cmn_err(9F)


Writing Device Drivers

September 15, 1992 PRINT(9E)