Re: Probs with PCI bus master DMA to user space

From: Norbert Roos (n.roos@berlin.de)
Date: Tue Feb 20 2001 - 09:10:49 EST


Jeff Garzik wrote:

> > But the buffers are usually allocated with malloc() by any application
> > which wants to use my driver.. otherwise my driver would have to offer a
> > malloc-like function, but I can hardly force the application to use my
> > own malloc function.
>
> If you are writing the driver, sure you can.

??

The application is doing something like

  fd = open("/dev/mydriver");
  buf = malloc();
  fill_buffer_with_data(buf);
 write(fd,buf);

And now i should tell the programmer not to use malloc() but my special
driver-malloc?
Or do you mean something different?

Norbert
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