Re: mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help

On Fri, Sep 16, 2005 at 11:24:08PM +0200, Martin Drab wrote:
> 
> And would that help anyhow?

yes it would

> (obtained via the RT FIFO) that he wants to mmap, the ioctl mmaps it to 
> the app., app. uses the data, and then calls another ioctl to unmap the 
> buffer and release it for next filling.

don't use ioctls for this; the driver can just provide an mmap method and
you can map this pci alloc'd ram straight into the userspace app... 

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References:
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- Re: mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help
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