Sorry for the "reply to all" problem..
On Tue, Oct 27, 2009 at 2:20 PM, Wolfgang Grandegger <[email protected]>wrote:
> >> Does this problem show up with CONFIG_CAN_DEV_SYSFS=y?
> >>
> > No actually it doesn't thanks.
> >
> > But I have another problem. Again I get a segfault while calling *rmmod*.
> >
> > I looked at the resource flags at different point in the code and I found
> > out that they were still ok at the end of the *init *function (but not in
> > exit or remove).
> >
> > So I did:
> > *modprobe tscan1
> > echo 1000 > /sys/class/net/can0/tx_queue_len
> > echo 12500 > /sys/class/net/can0/can_bittiming/bitrate
> > ip link set can0 up type can*
> >
> > I then saw that the resource flags were set to a wrong value (like
> > 102840504) in the *write_reg *function (after setting the can0
> interface).
> >
> > Do you know what is happening between the end of *init* and the moment
> that
> > *write_reg *is called?
>
>
> static int __init tscan1_init(void)
> {
> int irq;
> void *reg_end;
> struct resource tscan1_res[2];
>
> Shouldn't there be a "static" in front of "struct resource
> tscan1_res[2];". Does it fix your problem?
>
Thanks a lot it worked, but can you explain (or point me what to look for
:P) why this struct needs to be declared static. I do not understand what is
wrong there so I don't know where to search...
I tried can{ gen | dump }ing and it seems that write_reg is never called.
Calling *ip link set can0 type can bitrate 125000* gives the output:
*RTNETLINK answers: Operation not supported*
I am really confused about the role of RTNELINK vs iproute2 (compiled from
git if it can help).
Here are the details and stats of the interface:
ip -details -statistics link show can0
7: can0: <LOOPBACK,NOARP,UP,LOWER_UP> mtu 16 qdisc pfifo_fast state UNKNOWN
qlen 1000
link/can
RX: bytes packets errors dropped overrun mcast
574016 71752 71752 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
Thank you very much
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