Re: Windows 2000 and Vista USB driver issues

Yes, thats the default max transfer size. But you can change it by
creating a configuration urb och settings the speed you want.

chris.aseltine@xxxxxxxxx skrev:

wilhelm.lundgren@xxxxxxxxx wrote:

This driver reads a lot of data from the chip, and then passes it on to
a
User mode application. This works flawlessly in Windows XP.

But in 2k and Vista, I am hardly getting any data. I am requesting appr
200000 bytes
Per read and almost always I get back around 200 bytes or just random
amount of bytes.
In XP I always get what I asked for.

At least in Windows 2000, I don't think you can submit a bulk read for
more than 4096 bytes. If your application is asking for more than
that, you may need to buffer it in your driver.

.

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