Hi Silverstri,
On Thu, Feb 6, 2014 at 7:56 AM, m silverstri <michael.j.silverstri@xxxxxxxxx> wrote:
Hi,
I am developing a kernel driver. I need to allocate buffer in the
kernel driver and pass the physical address of the buffer to the Chip
register so that it can generate output there.
I tried using kmalloc() but I don' get any output from the chip.
If your device is not having an iommu, you need to convert the address returned by kmalloc using __pa(addr) before you program the chip.
Thanks,
Arun
Is there a better way to achieve what I want?
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