Elektronik GmbH
USB hub 3.0 6-Port, 2 Control Inputs
Manual
Page 16 of 18
8. Interface Description
The command line interface uses simple ASCII strings. Recognized valid commands are acknowledged with the
string "ok" if the command is a configuration command. For a read command, the corresponding data is sent. An
unrecognized command is answered with "???". In ready mode, all configuration commands are answered with
"off". A prefix "D" changes no current settings, but rather specifies a write or read access to the non - volatile
memory from which the configuration will be taken when the USB hub is turned on. All strings are terminated with a
CR (ASCII 13).
Command Parameters
Response
value
Comment
with
prefix
“D“
Switching
P
00 - 3F
ok
Bit mask of all six ports in hexadecimal. A set bit
corresponds to an active USB port. Thus if the lowest bit
is set, then Port 1 is active, if the third highest bit is set,
Port 6 is active. The two top bits are unused.
X
R
P
00
– 3F
Read the switching state (set state) of the USB port
X
R
PP
00
– 3F
Read the switching state (actual state) of the USB port
R
PO
00
– 3F
Read the error shutoff of the USB port
R
U
0
– 5 | U
0
– 3
Read, which USB connection is active
0 = no connection
2 = USB 2.0 connection
3 = USB 3.0 connection
Port to be read
0
– 5 = downstream port 1 to 6
U = upstream port (host)