USB 1.0 vs USB 2.0

What, if any, are the WDM driver differences, between supporting a USB high
speed device vi a full speed device?

I have a working driver I need to upgrade to support a new USB 2.0 device.
The new device is based on the working USB 1.1 device.

Larry Harmon - Contractor
Diebold, Inc.
330 490 6168

For one, the max packet size is larger if your device supports high speed…


Dennis Merrill
Embedded Systems Engineer
Thermo?Electron Corporation

-----Original Message-----
From: Harmon, Larry (CT) [mailto:xxxxx@diebold.com]
Sent: Monday, September 15, 2003 10:33 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] USB 1.0 vs USB 2.0

What, if any, are the WDM driver differences, between supporting a USB high
speed device vi a full speed device?

I have a working driver I need to upgrade to support a new USB 2.0 device.
The new device is based on the working USB 1.1 device.

Larry Harmon - Contractor
Diebold, Inc.
330 490 6168


Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

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