On 11/26/2013 12:20 PM, Giuseppe Iellamo wrote:
Hi all,
In my project I'm accessing a device using a linux device driver (via sysfs) .
In order to speedup the control loop I've mmapped the register i need to read.
The question is: If I access a device register using mmap
assuming you mean "mmaped memory" here,
from a xenomai task am i triggering a domain switch ?
No, unless you take a fault doing so, which should not happen if the MMR
is properly mapped/accessed.
BR,
Giuseppe
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--
Philippe.
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