first, you should get the 6000 WDK, it is the latest driver kit. your driver
can send i/o to the device on its own without the application initiating it.
you would hten have to keep a copy of the data you read until the
application asked for it.
I would recommend that you look at using KMDF or even better, winusb to
communicate with your hardware. If you use KMDF it has a feature called a
continous reader which will constantly send N number of URBs to the device.
If you use winusb, you can get rid of your driver completely and do all of
the i/o from the application. Both are available in the WDK.
d
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"slsnios" <slsnios.2tlzmk[ at ]mail.codecomments.com> wrote in message
news:slsnios.2tlzmk[ at ]mail.codecomments.com...
[Quoted Text] > > Hi All, > I developed USB2.0 High speed driver from DDK 2003 SP1. I made some > changes that will handle my custome device. > > I created an application which use overlapped I/O as NULL, so using > this my application has to wait for bytes read/write that i defined. Now > using this only single URB is active at time. But how can i generate > multiple URBs, so using that OS scheduler can execute URBs in fast > manner when it gets the time slice for USB bus. > > I think that using asychronous method i can achieve this, but that is > from the application level. How it would be possible to create multiple > URBs from driver or directly from application. > > Please suggest me. > Regards, > slsnios > > > > -- > slsnios > ------------------------------------------------------------------------ > Posted via http://www.codecomments.com> ------------------------------------------------------------------------ >
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