<div dir="ltr">Hi Silverstri,<div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Feb 6, 2014 at 7:56 AM, m silverstri <span dir="ltr"><<a href="mailto:michael.j.silverstri@gmail.com" target="_blank">michael.j.silverstri@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I am developing a kernel driver. I need to allocate buffer in the<br>
kernel driver and pass the physical address of the buffer to the Chip<br>
register so that it can generate output there.<br>
<br>
I tried using kmalloc() but I don' get any output from the chip.<br></blockquote><div>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.</div>
<div><br></div><div>Thanks,</div><div>Arun</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Is there a better way to achieve what I want?<br>
<br>
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