Nadym Salem wrote: > Hi, > > trying to send data via rtnet without ip on raw socket I have a problem. > > Using the native API it doesn't work at all, using the posix API it works > exactly once.
If your native example doesn't create a real-time context for the sender (rt_task_shadow etc.), that would be expected: -ENOSYS. The POSIX skin does so automatically for the main thread, thus sending works in principle. > Since I tried everything I tried to rewrite the raw-ethernet example in my > project (my source code is attached). The first call of that program sends > the buffer as it should (checking via wireshark). All further calls do not > send anything. All functions return without any error, send function > returns with 36, the amount of bytes to be sent. > I have no more idea where my mistake is. > > the raw-ethernet example works fine. > > sorry for chatoical code, it changed a lot of time for testing purpose. What is your setup? TDMA or plain RTnet? What happens when you issue those frames over rtlo? I only have a virtual box at hand right now, but the loopback path works fine for me with your code (with some additions to make it compile): on each invocation of the program, RTcap collects one frame on rtlo. Jan
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