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


On Fri, 16 Sep 2005, Arjan van de Ven wrote:

> 
> 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... 

OK, will do. Thaks.

Martin

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References:
- mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help
  - From: Martin Drab <[email protected]>
- Re: mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help
  - From: Arjan van de Ven <[email protected]>
- Re: mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help
  - From: Martin Drab <[email protected]>
- Re: mmap(2)ping of pci_alloc_consistent() allocated buffers on 2.4 kernels question/help
  - From: Arjan van de Ven <[email protected]>

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