From: Tom Evans <tom_usenet@optusnet.com.au>
To: Andreas Gareis <andreas.gareis@hs-augsburg.de>, xenomai@xenomai.org
Subject: Re: [Xenomai] rtdm can on mpc5121e - no rtcan devices detected
Date: Mon, 09 Dec 2013 09:06:36 +1100 [thread overview]
Message-ID: <52A4ED6C.9060601@optusnet.com.au> (raw)
In-Reply-To: <006201cef44d$e4967d90$adc378b0$@hs-augsburg.de>
On 09/12/13 06:44, Andreas Gareis wrote:
> Hi Wolfgang,
>
> Thanks for your answer.
> ...
>> RTCAN devices are not visible in /dev. It's not a character device.
>> You can find more informations in /proc/rtnet.
>
> The files "devices" and "sockets" which are located in /proc/rtcan don't
> have any entries. (/proc/rtnet doesn't exist on my system)
Did the CAN devices work before you installed Xenomai? Get them working there
first.
On the device I'm using (Freescale i.MX53), the CAN drivers are connected via
NETWORKING. So they don't show up in /dev, just as Ethernet doesn't show there
either (/dev is so 1980's :-).
root@triton1:~# ls /proc/net/can
rcvlist_all rcvlist_err rcvlist_inv reset_stats version
rcvlist_eff rcvlist_fil rcvlist_sff stats
root@triton1:~# ifconfig
can0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:256
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:82
can1 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:2527 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:256
RX bytes:19583 (19.1 KiB) TX bytes:0 (0.0 B)
Interrupt:83
eth0 Link encap:Ethernet HWaddr 00:0C:C6:79:6C:6E
... And so on.
Check for interrupts:
root@triton1:~# cat /proc/interrupts
CPU0
6: 0 tzic sdma
...
64: 0 tzic imx-i2c.2
82: 0 tzic can0
83: 5832 tzic can1
87: 124900 tzic imx25-fec.0
Tom
next prev parent reply other threads:[~2013-12-08 22:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-08 19:44 [Xenomai] rtdm can on mpc5121e - no rtcan devices detected Andreas Gareis
2013-12-08 22:06 ` Tom Evans [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-12-09 18:17 Andreas Gareis
2013-12-09 19:09 ` Wolfgang Grandegger
2013-12-09 19:35 Andreas Gareis
2013-12-10 8:01 ` Wolfgang Grandegger
2013-12-30 16:00 Andreas Gareis
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