FTDI Community

General Category => Discussion - Drivers => Topic started by: terminator_le on November 14, 2022, 01:47:51 PM

Title: FT_GetDeviceInfoList non-ASCII serial problem
Post by: terminator_le on November 14, 2022, 01:47:51 PM

we have encountered a problem with libftd2xx v1.4.27 on linux
FT_GetDeviceInfoList fills FT_DEVICE_LIST_INFO_NODE.SerialNumber with ASCII characters only
any non-ASCII character gets replaced with `?` == 0x3f
problem location best guess is: libusb_get_string_descriptor_ascii() at libusb included within driver package
same problem is with FT_GetDeviceInfo

while the same code works well on windows: serial number is returned correctly

can you please give a hint: how to retreive serial number value without any non-ASCII replacement?

Title: Re: FT_GetDeviceInfoList non-ASCII serial problem
Post by: FTDI Community on November 15, 2022, 04:35:59 PM

Hello,

The solution would be to only use Serial Number or Description with ASCII characters.

You can use D2xx Programming functions in Linux to reprogram or you can use FT_PROG (https://ftdichip.com/utilities/#ft_prog) on Windows.

The alternative driver that you can try is LibFTDI which is an open source library/driver but is not created/supported by FTDI:

https://www.intra2net.com/en/developer/libftdi/

This third party solution includes the source so may suit you if you need to make changes to the source.

Best Regards,
FTDI Community