[ECOS] Non-blocking mode read from serial port

[Jonathan Larmour]

Ali Rodgo wrote:
> Hello, what i have to do is to read one byte from the serial port send
> it to the screen and repeat the process.Without VMIN=1 in the programm
> the read() function doesn't block itself and go to the next step even
> though no data was read.

That should really never happen. Unless you marked the socket as 
non-blocking - but if you want to wait until a byte is read, then it 
shouldn't be non-blocking.

> With the VMIN=1 the read() function block
> itself each three data and these are always the same, 0 or 128.I don't
> really know why.The code is quite simple but doesn't work:

VMIN=1 won't work yet, sorry. But there are easy to use alternatives.

Jifl
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