Oliver,
> It works for me.
>
> writev(6, [{"\6\n\0\0\0\0", 6}], 1) = 6
> write(2, "written bytes: ", 15written bytes: ) = 15
> write(2, "6", 16) = 1
> write(2, "\n", 1
> ) = 1
> readv(6, 0x7ffffa9fe1a0, 1) = -1 EAGAIN (Resource temporarily unavailable)
> poll([{fd=6, events=POLLIN}], 1, -1) = 1 ([{fd=6, revents=POLLIN}])
> readv(6, [{"\6\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 64}], 1) = 6
interesting
> Can you test whether the hang is specific to a test device you are using?
not really - I'm just using it with this one device (it's the controller
firmware for the fab@home 3D printer). unfortunately I don't have other
cdc-acm usb serial devices around :(
but I tested it on several machines, and I get the same.. (so it's not
related to my specific computer)
how to go forward?
Akos
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