Hello,
I'm using the DirectKS Example in my application. Most of the times it
works flawless but sometimes after several starts / stops / restarts
IOCTL_KS_READ_STREAM returns invalid parameter. The driver does not
recover until I close my programm and restart it again. I'm using XP SP1.
My question is now in which situations does the microsoft portclass
driver (wavecyclic) return invalid parameter? I assume this is a kind of
memory allocation problem. Maybee the data buffers have to be of a
special memory type?
Thank you in advance.
Uwe
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