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<== Date ==>		<== Thread ==>

Subject:	Problems with asyn and Windows
From:	"Brands Helge" <[email protected]>
To:	<[email protected]>, "Mark Rivers" <[email protected]>
Date:	Wed, 21 Sep 2011 10:50:03 +0200

Hi Mark,

I have a problem with asyn in combination with RS232 and Windows. The timeout parameter =0.0 blocks the read operation and will never come back, when no bytes are received. The documentation points out that zero will not block. The problems is in the readit part of the new drvAsynSerialPortWin32.c. The for-loop will never end. I added a :

if (tty->readTimeout == 0.0)

break;

This will fix the problem

Best regards

Helge

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Paul Scherrer Institut

Dr. Helge Brands

WBGB/013

5232 Villigen PSI

Switzerland

Tel.: +41 56 310 5408