Re: [ECOS] How to use cyg_io_select

[Franck MAMALET FT-R&D DIH/OCF <franck dot mamalet at rd dot francetelecom dot fr>]

>  
> I'm not entirely clear on your problem but anyway.
> >   But since you say you want a non-blocking
> > read, I don't know quite why
> >   there would be anything that needed waking up!
Sory it wasn't clear, hope this will be better:
     I want a blocking read when no data is available,
and a non-blocking read as regards to the number of byte to read (I want
to be woken up when I can read 1 or more byte, and I don't want to call
read once and get all bytes available).
> For the thread to wake
> up, it must have been blocked waiting in select(). That means having
> opened
> and used the serial devices using open/read/write, and not cyg_io.
> cyg_io_select() is the select file operation, it isn't actually an
> equivalent of select().
Does this mean I need Posix Package to be able to wake-up my thread (the
file package/io/fileio/current/test/select.c begins with "POSIX package
needed to run test")?

Thanks,
Franck.
 

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