Hi there,
I'm trying to get the SocketCAN driver ems-usb running with
a kernel 2.6.31-19, but fail.
I've updated my local version with the svn repository files
and compiled the socket can drivers against the running kernel
2.6.31-19-generic on a ubuntu box.
Running "make modules" and "make modules install" compiles all
the modules fine, modpostes 24 modules and installs them. Afterwards the
driver is found under
/lib/modules/2.6.31-19-generic/extra/drivers/net/can/usb/ems_usb.ko
All fine, but if I try to load the driver, it is refused.
# modprobe ems_usb
FATAL: Error inserting ems_usb
(/lib/modules/2.6.31-19-generic/extra/drivers/net/can/usb/ems_usb.ko):
Unknown symbol in module, or unknown parameter (see dmesg)
# lsmod | grep can
can_dev 7004 0
can_raw 7164 0
can 23068 1 can_raw
#tail -n 13 /var/log/messages
Jun 15 11:48:31 freya kernel: [ 1699.264333] can: controller area
network core (rev 20090105 abi 8)
Jun 15 11:48:31 freya kernel: [ 1699.264453] NET: Registered protocol
family 29
Jun 15 11:48:47 freya kernel: [ 1714.986724] can: raw protocol (rev
20090105)
Jun 15 11:49:03 freya kernel: [ 1730.878233] CAN device driver interface
Jun 15 11:49:03 freya kernel: [ 1730.879362] ems_usb: Unknown symbol
can_free_echo_skb
Jun 15 11:49:03 freya kernel: [ 1730.879574] ems_usb: disagrees about
version of symbol can_put_echo_skb
Jun 15 11:49:03 freya kernel: [ 1730.879581] ems_usb: Unknown symbol
can_put_echo_skb
Jun 15 11:49:03 freya kernel: [ 1730.880040] ems_usb: disagrees about
version of symbol can_get_echo_skb
Jun 15 11:49:03 freya kernel: [ 1730.880046] ems_usb: Unknown symbol
can_get_echo_skb
Jun 15 11:49:03 freya kernel: [ 1730.881232] ems_usb: Unknown symbol
alloc_can_skb
Jun 15 11:49:03 freya kernel: [ 1730.883261] ems_usb: disagrees about
version of symbol alloc_candev
Jun 15 11:49:03 freya kernel: [ 1730.883268] ems_usb: Unknown symbol
alloc_candev
Jun 15 11:49:03 freya kernel: [ 1730.883751] ems_usb: Unknown symbol
alloc_can_err_skb
What I'm doing wrong?
The ems_usb driver is in the mainline kernel for 2.6.32, also the
mentioned functioned are added for this kernel in drivers/net/can/dev.c
but they are there also within the socketcan repository. Aren't they
available afterwards?
Thanks for your help!
Markus
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