Ftdi Port Devices Driver

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FTDI USB Serial Port Driver 2.12.26 Windows 10 Anniversary Update 64-bit 226 downloads. FTDI FT601 USB 3.0 Bridge Device Driver 1.2.0.6 Windows 8.1 64-bit 24. Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Application software can access the USB device in the This page contains the VCP drivers currently available for FTDI devices. For D2XX Direct drivers, please click here. Installed latest FTDI drivers. No prior FTDI drivers installed. Myself and others get a common notice in both the COM and USB port “Events” section of Device Manager. Win 10 shows the following message in Device Manager COM port “Events” details section that reads: “Device FTDIBUS VID0403+PID609A 0000 requires further. FTDI drivers may be used only in conjunction with products based on FTDI parts. FTDI drivers may be distributed in any form as long as license information is not modified. If a custom vendor ID and/or product ID or description string are used, it is the responsibility of the product manufacturer to maintain any changes and subsequent WHCK re-certification as a result of making these changes.


On Thu, Jun 2, 2016 at 9:33 AM, E.S. Rosenberg <es.rosenberg+libftdi.i2net@xxxxxxxxx> wrote:
That sounds correct, from my experience with the Open Lighting Architecture ftdi driver you need a separate context for each port (I modified it to support a 4-port single FTDI device), so devices would definitely need their individual context.
HTH,
Eli

2016-06-01 18:50 GMT+03:00 Ales Fiala <ales.fiala@xxxxxxxxxxx>:
I am trying to understand how to open and use multiple FTDI devices in the same program.
I am using ftdi_usb_find_all() to enumerate the devices and then ftdi_usb_open_dev() to open each one and identify it. Afterwards I close each device. I do this part with just one ftdi_context.
Now that I found all the devices I want to open each selected device and keep it open for reading and writing. I notice that ftdi_context contains the following:
  • libusb_device_handle
  • readbuffer
  • eeprom

All this makes me believe that I need a separate ftdi_context for each device that I want to access. Am I on the right track?

Using the ftdi_device_list that I found above I want to create a new context for each device and open it.

I tried doing

ftdi_new();
ftdi_usb_open_dev();

for each device using the old device list. But I get a SIGSEGV somewhere in the depths of usb_open() in libusb. I am thinking it is because I used a device list created with one context and now am trying to open the same device using a different context.

So how do I accomplish what I want? Any advice would be appreciated.

Regards

Ales Fiala



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