This error occurs when we are using multiple masters along with RTDM.
Device minor is not set and device numbers are always one when registering
an RTDM device.
Seems there is no need to change the legacy Xenomai 2.6 RTDM driver, because
the device will be identified by a name instead of a device minor.
From 9567f460411d9a832c24b3ef65252f6f4f902fef Mon Sep 17 00:00:00 2001
Xenomai version 3 has different RTDM interface with version 2 and has
Alchemy interface instead of native API. This supports RTDM of Xenomai
version 3 and to use Alchemy interface.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
