Re: [Ftdi-usb-sio-devel] Fwd: FT_Open(0) failed

[Michael P. <mic...@gm...>]

Mohsen Jamali wrote:
>> Hi dear guys
>> i have installed the driver of ftdi on ubuntu 11.10 but when trying to
run the example get the following error
>> without root privilege it says that cannot access to the device and after
using sudo command it cannot open the device.
>> as you know driver and examples are available here:
http://www.ftdichip.com/Drivers/D2XX.htm
>> what's wrong with me?!
>> thanks
>>
>> mohsen@mohsen-Aspire-5738:~/Desktop/libftd2xx1.0.4/sample/LargeRead$
./largereadlibusb couldn't open USB device /dev/bus/usb/005/002: Permission
denied.
>> libusb requires write access to USB device nodes.
>> Segmentation fault
>> mohsen@mohsen-Aspire-5738:~/Desktop/libftd2xx1.0.4/sample/LargeRead$ sudo
./largeread
>> FT_Open(0) failed


This list is for the ftdi serial driver built into the kernel.  libftdi's
list is for the open source libftdi.  Neither of those lists are appropriate
for your problem.  Your problem is with the proprietary driver, so you need
to contact FTDI themselves.  Or you can use libftdi, which is a better piece
of code anyway, if it does what you need.

Regards,
Michael