VirtualCopy and VirtualAlloc

Hi, This might be a very basic question. But please help me, as I am a newbie to this field.

I am involved in writing an audio codec (linux) driver which has no DMA controller of its own, but the coprocessor(MQ1132) which controls the CODEC has a dma controller. Can I directly address a memory location (Virtual) through the linux device driver, or should I map it and then use. Actually the windows code for the same is doing some VirtualAlloc and VirtualCopy. Do I need to do any such things or can I directly use the the virtual address directly in my code.

Thanks in advance Suresh. R

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Dan Kegel

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