SCSI_LOG(9F) Kernel Functions for Drivers SCSI_LOG(9F)
scsi_log - display a SCSI-device-related message
#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, ...);
illumos DDI specific (illumos DDI).
dip
Pointer to the dev_info structure.
drv_name
String naming the device.
level
Error level.
fmt
Display format.
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().
The scsi_log() function may be called from user, interrupt, or kernel
context.
sd(4D), kernel(8), cmn_err(9F), scsi_errmsg(9F)
Writing Device Drivers
January 16, 2006 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)