Re: [Xenomai] Simple application for invoking rtdm driver

[Greg Gallagher <greg@embeddedgreg.com>]

If you want to use open, read, write you need to specify in the
makefile to use the posix skin.  You need something like these in your
Makefile:

XENO_CONFIG := /usr/xenomai/bin/xeno-config
CFLAGS := $(shell $(XENO_CONFIG) --posix --cflags)
LDFLAGS := $(shell  $(XENO_CONFIG) --posix --ldflags)


-Greg



On Mon, Mar 19, 2018 at 9:42 PM, Pintu Kumar <pintu.ping@gmail.com> wrote:
> Hi,
>
> I have developed a simple rtdm driver using: open, read_rt, write_rt, close.
> Now I wanted to test it using a Xenomai native application, using native skin.
>
> Here are my observation.
>
> 1) If I use normal open, read, write system call, then Xenomai reports
> that normal read/write method is used for rtdm.
> So, it does not work like that.
>
> 2) If I use, rt_dev_open, rt_dev_read, rt_dev_write, then it works fine.
> But latency is very high for write/read, compared to normal.
> Also, the migration document says these are legacy API and should be
> replaced with rtdm_open, etc. for Xenomai 3.0.
> However, if I use rtdm_open, rtdm_write, etc, it could not compile successfully.
> I have included rtdm/rtdm.h header file.
>
> So, please guide me which are the right APIs to use to invoke the rtdm driver.
> I could to find the right example in test suite.
>
>
> Thanks,
> Pintu
>
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