From 2e8dc2f2c1f669401f4bb07ccdb92ae8e44a9f00 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sat, 17 Mar 2012 15:23:49 +0100 Subject: usb/usbmon: correct the data interpretation of usbmon's output The doc says that the data | 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000 is the SCSI command 0x5e. According to the usbmon source, it dumps one byte after the other. The first 4 bytes are US_BULK_CB_SIGN which is correct. After that we see the TAG which is 0x5e. The cdb is 0x00 in this example. In order to correct this, I change the example to a READ_10 command which is 0x28 so it is not just a zero somewhere in the stream. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- Documentation/usb/usbmon.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation/usb') diff --git a/Documentation/usb/usbmon.txt b/Documentation/usb/usbmon.txt index 5335fa8b06eb..c42bb9cd3b43 100644 --- a/Documentation/usb/usbmon.txt +++ b/Documentation/usb/usbmon.txt @@ -183,10 +183,10 @@ An input control transfer to get a port status. d5ea89a0 3575914555 S Ci:1:001:0 s a3 00 0000 0003 0004 4 < d5ea89a0 3575914560 C Ci:1:001:0 0 4 = 01050000 -An output bulk transfer to send a SCSI command 0x5E in a 31-byte Bulk wrapper -to a storage device at address 5: +An output bulk transfer to send a SCSI command 0x28 (READ_10) in a 31-byte +Bulk wrapper to a storage device at address 5: -dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000 +dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 ad000000 00800000 80010a28 20000000 20000040 00000000 000000 dd65f0e8 4128379808 C Bo:1:005:2 0 31 > * Raw binary format and API -- cgit v1.2.2