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RocketPort USB Serial Hub II Driver Installation for LinuxThis page describes how to:
The PC connected to the RocketPort USB Serial Hub II must meet the following requirements:
A Pentium-class CPU system with an available USB port (type A, flat
connector, downstream). The RocketPort USB Serial Hub II supports
USB 2.0 and is USB 1.0 and 1.1 compatible. Linux distribution including the Prolific driver (pl2303) in the kernel,
compiled in or loaded as a module.
How to Check for the USB DriverThe first installation step is to see if the USB driver is available on your system.
Attach the USB cable from the RocketPort USB Serial Hub II to a USB port on your computer Login to the root account. At the command prompt, type dmesg | grep ttyUSB
The following shows example results:
usb 2-1.1: pl2303 converter now attached to ttyUSB0
usb 2-1.2: pl2303 converter now attached to ttyUSB1
usb 2-1.3.1: pl2303 converter now attached to ttyUSB2
usb 2-1.3.2: pl2303 converter now attached to ttyUSB3
usb 2-1.3.3.1: pl2303 converter now attached to ttyUSB4
usb 2-1.3.3.2: pl2303 converter now attached to ttyUSB5
usb 2-1.3.3.3: pl2303 converter now attached to ttyUSB6
usb 2-1.3.3.4: pl2303 converter now attached to ttyUSB7 If you do see ttyUSB0, ttyUSB1, etc.,
the kernel already has the driver built in or the module is loaded, and you are ready to use your RocketPort USB Serial Hub II.
If you do not see anything in the output from the above command about
ttyUSB devices, your kernel does not have
the correct drivers compiled in or loaded in via module. In this case, recompile your kernel with the correct drivers.
Attaching the RocketPort USB Serial Hub IIUse the following procedure to attach the RocketPort USB Serial Hub II.
If you have not done so, bring the machine back up. Attach the USB cable from the RocketPort USB Serial Hub II to a USB port on
your computer. The system detects the device and creates ttyUSB0 through
ttyUSB3.
Connecting Serial DevicesUse the following procedure to connect serial devices to the RocketPort USB Serial Hub II.
Connect the serial device(s) to the serial port(s) on the
RocketPort USB Serial Hub II. Disconnect the USB cable from the RocketPort USB Serial Hub II upstream port.
The USB port is located next to the serial ports. Reconnect the USB cable to the RocketPort USB Serial Hub II upstream port.
The PC automatically locates and configures each serial port on the RocketPort USB Serial Hub II.
If you switch the serial devices that are connected to the RocketPort USB Serial Hub II,
make sure that you disconnect and reconnect the upstream cable
(USB type B, square shape) from the device.
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