print(9E) manual page
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print - display a driver message on system console
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int prefixprint(dev_t dev, char *str);
Architecture independent
level 1 (DDI/DKI). This entry point is required for block devices.
- dev
- Device number.
- str
- Pointer to a character string describing the problem.
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.
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.
cmn_err(9F)
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