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Re: O_NONBLOCK serial I/O blocks on 95, OK on NT
- To: cygwin support <cygwin at sources dot redhat dot com>
- Subject: Re: O_NONBLOCK serial I/O blocks on 95, OK on NT
- From: Bruce Edge <bedge at sattel dot com>
- Date: Wed, 06 Dec 2000 14:13:32 -0800
- Organization: Sattel Global Networks
- References: <F10D23B02E54D011A0AB0020AF9CEFE999EE7C@lynx.ceddec.com>
"Town, Brad" wrote:
>
> Microsoft's overlapped I/O for serial ports is fully implemented, though
> it's just different enough to drive you crazy. I've had times when serial
> I/O code (straight Win32 API stuff) would work perfectly under NT/2000, but
> would fail under Win9x because some parameters were considered invalid. I
> wish I could remember the details.
So do I :-)
Does anyone know if anything changed WRT serial I/O on 98 or ME?
I have to support _one_ of the crappy OSs. I was wondering if an upgrade would
be worth it.
Lastly, more data:
When I'm hung up in the read(), my timer interrupt ISR stops getting called.
Only thing it seems to respond to at this point is a Ctrl-C.
-Bruce.
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