Re: READ_PORT_UCHAR and COM2

From: ksmith (ksmith_at_discussions.microsoft.com)
Date: 03/01/05 

Date: Tue, 1 Mar 2005 09:45:03 -0800

Wally,

I don't believe there is anything sitting on com2, at least not according to
the registry. I am using a standard iPAQ hx47000 so maybe it has a driver I
don't know about. The only references I see are in
HKEY_LOCAL_MACHINE\Comm\Irsir1\Parms\Port = 2 and
Drivers\BuiltIn\Serial_FIR\Prefix = COM & Index = 2.

Serial, Serial_BTUR, Serial_External and Serial_FIR all share IRQ 19.

Do you know if my code looks sound? I'm not sure I'm using iobase and iolen
correctly.

Kyle

"Wally" wrote:

>
> Do you already have a COM2 driver?
> If so could it be reading the data (on interrupt) before you read it.
>

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