Hello, I found a bug in the cpp-wrapper for the ftdi-lib that concerns nearly all open() functions of the Context-Class. All open-functions except the one with the usb_device parameter return with -1 (and error string "all fine") even if opening the device should be posssible (the ftdi-c version can open the same device). The reason for that behavior is, that they all use for the first connect to the device the correct ftdi-c-function concerning to the given parameters (open(vendor,pid) uses ftdi_usb_open(ftdi, vendor, product), open(description) uses ftdi_usb_open_string(ftdi, description.c_str()) and so on) but after the first connect they all use the ftdi_usb_get_strings function that needs as one parameter the usb_device. this has not been set before when using these special open-functions so it returns with an error and the open-function failes. I have already implemented a fix in my sources by adding to further functions in the ftdi-c-lib that returns by reference the usb_device ande changed the concerning calls in the cpp-wrapper. That all works fine for me now. But is a problem in the ftdi-cpp-wrapper worth a change in the ftdi-c-lib? I will try to commit it if possible today, otherwise next week.
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