libftdi Archives
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From: | Ales Fiala <ales.fiala@xxxxxxxxxxx> |
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To: | libftdi@xxxxxxxxxxxxxxxxxxxxxxx |
Date: | Wed, 1 Jun 2016 09:50:14 -0600 |
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.
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. ftdi_new(); 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 libftdi - see http://www.intra2net.com/en/developer/libftdi for details. |
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