Jeroen Van den Keybus wrote: > The dev_private data field of an rtdm_dev_context is defined as char[0]. How > do I access such a field properly (given the fact that I defined a nonzero > context_size in the rtdm_device structure during driver registration) ? > > E.g. trying to do: > > (struct my_struct *)context->dev_private = NULL; > > results in: > > error: incompatible types in assignment > > I _am_ able to compare though: > > if ((struct my_struct *)context->dev_private == NULL) > ... > > seems to compile fine. > > > Jeroen. >
context->dev_private does not contain an address, it IS the start address of your private date. It's size is specified during device registration. See existing drivers for usage examples. Jan
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