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

NAME

scsi_log - display a SCSI-device-related message

SYNOPSIS

#include <sys/scsi/scsi.h>
#include <sys/cmn_err.h>


void scsi_log(dev_info_t *dip, char *drv_name, uint_t level,
const char *fmt, ...);

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

PARAMETERS

dip
Pointer to the dev_info structure.


drv_name
String naming the device.


level
Error level.


fmt
Display format.

DESCRIPTION

The scsi_log() function is a utility function that displays a message via
the cmn_err(9F) routine. The error levels that can be passed in to this
function are CE_PANIC, CE_WARN, CE_NOTE, CE_CONT, and SCSI_DEBUG. The
last level is used to assist in displaying debug messages to the console
only. drv_name is the short name by which this device is known; example
disk driver names are sd and cmdk. If the dev_info_t pointer is NULL,
then the drv_name will be used with no unit or long name.


If the first character in format is:

o An exclamation mark (!), the message goes only to the system
buffer.

o A caret (^), the message goes only to the console.

o A question mark (?) and level is CE_CONT, the message is
always sent to the system buffer, but is written to the
console only when the system has been booted in verbose mode.
See kernel(8). If neither condition is met, the ? character
has no effect and is simply ignored.


All formatting conversions in use by cmn_err() also work with scsi_log().

CONTEXT

The scsi_log() function may be called from user, interrupt, or kernel
context.

SEE ALSO

sd(4D), kernel(8), cmn_err(9F), scsi_errmsg(9F)


Writing Device Drivers

January 16, 2006 SCSI_LOG(9F)