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1 | initial version |
Try to run the Programm as root (sudo your programming)
Add a udev rule to map the device to yours second_user.
I think the problem is that ftdi_usb_open opens the /dev/bus/usb device and not the ttyUSB0 device
If you like to ise the raw interface maybe there is then an conflict with the Linux tty Module driver.
2 | No.2 Revision |
Try to run the Programm as root (sudo your programming)
Add a udev rule to map the device to yours second_user.
I think the problem is that ftdi_usb_open opens the /dev/bus/usb device and not the ttyUSB0 device
If you like to ise the raw interface maybe there is then an conflict with the Linux tty Module driver.
It is an permission error see the solution here
http://developer.intra2net.com/mailarchive/html/libftdi/2009/msg00186.html