Hi all
i developed a usb2ser.sys on windows platform (kmdf) which will show USb port as a COM port to the PC and can work with serial port application in PC.
now i got into the trouble about Read opreation with some applications.
why i mentioned "some" becz my driver is perfectly works with the app if it is implemented in the way that Readfile win32 api is calling in a thread n it gets the data if device sends..
but some application are in diffway that when ever readbuffer is full then device drver can configure the devicecotroll er to geneate a siganl to the CPU called an interrupt request...application watch this n calls read operation..if it's the case i was failuring about read operation..
am i right about what i explained cause of failure about read operation?
can any one tell me how to give an interrupt to the PC from driver when i need..
how can i show to the application there is an interrupt if it checks..
if any tell me code abouthis in KMDf it would be appreciated
08-29-2008
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