Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::scsi.set_state - Order SCSI device state change
SYNOPSIS
scsi.set_state
VALUES
host_no
The host number
old_state_str
The current state of the device, as a string
state
The new state of the device
lun
The lun number
channel
The channel number
dev_id
The scsi device id
old_state
The current state of the device
state_str
The new state of the device, as a string
SystemTap Tapset Reference March 2016 PROBE::SCSI.SET_ST(3stap)