Joachim Schambach wrote:
>> i.e. no data is being received into the FIFO from
>> the Linux box. Yet on the Linux side, the call returns with no error, as
if the
>> call succeeded.
>> After some experimentation, I finally found that everything worked
correctly
>> again when I added a second ftdi_write_data call, even if that one only
sent 1 byte.
>> So I tried the same thing with the libftd2xx library from FTDI, and
indeed, that
>> one behaved the same way.
>> [...]
>> So either I am missing something fundamentally, or something is weird
with the
>> Linux USB implementation. And yes, I did call rmmod ftdi_sio and rmmod
usbserial.
Maybe see if usbmon shows it going out?
Michael
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