Re: ftdi_usb_get_strings failed

["rix.li" <i@xxxxxx>]

I turns out it's because my FT232H chip's EEPROM is empty, filled with 0xFF.
It's indeed where the chip stores customized USB descriptors values.
With the FTDI's FT_PROG utility I'm able to program the values through the
OEM driver.
Now the "find_all" program works and reports the strings I programmed into
the EEPROM.

I think you can reproduce my problem by erase the EEPROM with FT_PROG. I
think it's indeed an exception should be taking care of when libusb failed
to get the string descriptors. Maybe inform the user their chip's EEPROM
might be empty.

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