i am not sure if i understand the PID stuff correctly after reading
thru the code and some USB spec
i thought from my limited reading that
OUT - Function to HOST
IN - HOST to Function
so... if that is the case... from PC/host point of view... we SHOULD
never send out any packet that is has OUT bit set???? why am i seeing
BULK message being queued up with that bit set ???
0x80000280
^
this starts happening when the usbserial being opened...
the driver... (SL811) from my reading that look at the PID and decide
not to copy the data into the chip's memory area.....
so
1. why is the host protocol stack generating packets with OUT bit???
is this wrong???
should that bit not be set???
2. or... the driver should ingnore that bit and push the data out
regardless?
thanks a lot
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