Re: mrfioc2 error at uTCA platform

[Michael Davidsaver <mdavidsaver@gmail.com>]

On 03/10/2016 11:58 PM, 김지화(빔라인장치팀) wrote:
> Hi Michael,
> I've attached system information.

> [root@amc725 ~]# lsmod
>  Module                  Size  Used by
> ...
>  mrf                    13648  0
>  uio                    19175  1 mrf
>  parport                40636  1 mrf
> ...
>  pci_mrfevr             53687  0

This shows that both kernel modules are loaded.  To simplify
troubleshooting please ensure that only the 'mrf' module is loaded and
not 'pci_mrfevr'.

Only one linux driver can be attached to a particular PCI device.  This
will typically be the first one loaded, in this case 'pci_mrfevr'.  I
should also note that, with modern Linux drivers, having to manually
create a file in /dev/ is a sure sign that something is wrong.