From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- Documentation/scsi/st.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation/scsi') diff --git a/Documentation/scsi/st.txt b/Documentation/scsi/st.txt index f29fa5506..b3211af63 100644 --- a/Documentation/scsi/st.txt +++ b/Documentation/scsi/st.txt @@ -569,7 +569,9 @@ Debugging code is now compiled in by default but debugging is turned off with the kernel module parameter debug_flag defaulting to 0. Debugging can still be switched on and off with an ioctl. To enable debug at module load time add debug_flag=1 to the module load options, the -debugging output is not voluminous. +debugging output is not voluminous. Debugging can also be enabled +and disabled by writing a '0' (disable) or '1' (enable) to the sysfs +file /sys/bus/scsi/drivers/st/debug_flag. If the tape seems to hang, I would be very interested to hear where the driver is waiting. With the command 'ps -l' you can see the state -- cgit v1.2.3-54-g00ecf