On 07/19/2011 10:40 AM, Oliver Hartkopp wrote:
On 19.07.2011 17:35, Mike Brown wrote:
On 07/19/2011 09:51 AM, Oliver Hartkopp wrote:
When the sent CAN frames are not pushed into the rx queue on successful
transmit IFF_ECHO must not be set in the device flags.
I didn't dig this deep into the flexcan driver but did got deep enough to see
this flag being set as well. If read the SocketCAN documentation correctly,
then if the driver doesn't set this flag then the PF_CAN layer should handle
the loopback??? I'm trying to get a build with the flag cleared in flexcan.c
Yes - that's a good test!
Feedback is appreciated :-)
Clearing the IFF_ECHO flag in flexcan.c fixes the problem. I can now
run cansend and candump on the same CAN interface.
# candump -a can0,0:0
can0 1 [1] 48 'H'
# cansend can0 001#48
#
Safe to assume that the flexcan driver doesn't support loopback as
described then?
http://lxr.linux.no/#linux+v2.6.39/Documentation/networking/can.txt#L580
_______________________________________________
Socketcan-users mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/socketcan-users
