What: /sys/bus/scsi/drivers/st/debug_flag Date: October 2015 KernelVersion: ?.? Contact: shane.seymour@hpe.com Description: This file allows you to turn debug output from the st driver off if you write a '0' to the file or on if you write a '1'. Note that debug output requires that the module be compiled with the #define DEBUG set to a non-zero value (this is the default). If DEBUG is set to 0 then this file will not appear in sysfs as its presence is conditional upon debug output support being compiled into the module.