Management and Configuration Guide K/KA/KB.15.15

Enabling or disabling the USB port
This feature allows configuration of the USB port with either the CLI or SNMP.
Syntax
usb-port
no usb-port
Enables the USB port. The no form of the command disables the USB port and any access to the
device.
To display the status of the USB port:
Syntax
show usb-port
Displays the status of the USB port. It can be enabled, disabled, or not present.
Figure 29 Example of show usb-port command output on version K.13.59 and later
(HP_Switch_name#) show usb-port
USB port status: enabled
USB port power status: power on (USB device detected in port)
USB port reseat status: USB reseat not required
Example 50 show usb-port command output on version K.14.XX
(HP_Switch_name#) show usb-port
USB port status: enabled
USB port power status: power on (USB device detected in port)
One of the following messages indicates the presence or absence of the USB device:
• Not able to sense device in USB port
• USB device detected in port
• no USB device detected in port
The reseat status messages can be one of the following (K.13.XX only):
• undetermined USB reseat requirement
• USB reseat not required
• USB device reseat required for USB autorun
The autorun feature works only when a USB device is inserted and the USB port is enabled.
Software versions K.13.XX operation
When using software version K.13.58, if the USB port is disabled (no usb-port command), the USB
autorun function does not work in the USB port until the USB port is enabled, the config file is
saved, and the switch is rebooted. The 5 volt power to the USB port remains on even after the USB
port has been disabled. For software versions after K.13.58, the 5 volt power applied to the USB
port is synchronized with the enabling of the USB port, that is, when the USB port is enabled, the
5 volts are supplied; when the USB port is disabled, the 5 volts are not supplied. For previous
software versions the power was supplied continuously. The autorun function does not require a
switch reboot, but the USB device must be inserted at least once after the port is enabled so that
the switch recognizes that the device is present. If the USB device is inserted and then the USB port
is enabled, the switch does not recognize that a USB device is present.
88 Port Status and Configuration