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Sluggish transmit completes

Subject: Sluggish transmit completes
From: Gerald Heinig <email@hidden>
Date: Fri, 21 Oct 2005 18:14:11 +0200
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Organization: SysKonnect GmbH
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Hi all,

I have a problem with transmit complete calls on my USB Ethernet device. It seems that I have to wait between 300 and 1200 microseconds for my USB write completion routine to get called when I transmit. This is while nothing is going on, no traffic other than my ping. Is this normal? This seems an extremely long time to have to wait for the transmission of a packet over USB 2.0. Is there anything obvious I can check that I might be doing wrong?

Cheers,
Gerald
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