Use one of the GPIO pins connected to GND or power on the FTDI device as
a front/back indicator.
Rodney
On 06/09/2016 08:55 AM, Michael Eder wrote:
I have a question related to how one can distinguish between the
devices when there are multiples of the same FTDI devices plugged into
a USB hub?
I suspect the answer is to program the FTDI devices with a unique name
in its EEPROM, but is there a way short of that how I can identify
what device is plugged in where?
Simple example. I have two temperature I2C devices that have the same
fixed I2C address. I need to use two FTDI devices to talk to each of
these. One I2C device is in the front of my boat the other in the
back. If I always plugged the front FTDI USB device in the same port
on the USB hub and the back one also into a particular port could I
that way know which device is which and, if so, how can I identify the
usb port with the libftdi? Would this mechanism work even if I
plugged and unplugged the devices in at different times, but always to
their assigned port.
Any suggestions how to best do this greatly appreciated.
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