Newer FTDI devices use a 512 byte packet which is not supported by the existing FTDISerialDevice class

[bill-chadwick]

It looks like newer FTDI devices use 512 byte packets rather than 64. The FTDI Class currently assumes packets that have repeats of 2 bytes of status and 62 bytes of data. The newer FTDI devices go 2 bytes of status followed by 510 bytes of data. There is a 1 bit difference in the first status byte that might be indicating 64/512 byte packets size but I have not been able to find information that confirms that.

[kai-morich]

using the packet size instead of hardcoded 64 should solve the issue, as used in the other usb-serial library:
https://github.com/mik3y/usb-serial-for-android/blob/dea836d8cedde56a6a22d2fb9417b8f1dc33b283/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/FtdiSerialDriver.java#L167