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How to configure and use CAN bus?

(14 posts) (3 voices)

• Started 10 years ago by lricher
• Latest reply from lricher
• This topic is resolved

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1. 

   lricher
   

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   I'm working on a small PC that will be used to collect engine data.
   The chipset in use is Intel EG20T.

   lspci | grep -i network gives me
   02:0c:3 CANBUS: Intel Corporation Platform Controller Hub EG20T Controller Area Network (CAN) Controller
   So I know the bus is detected by the system.

   I do not know where to proceed from here. I have read a bit online about using modprobe to start some modules (can, can-dev, can-raw) but none of these modules are detected by my system.

   I have been trying to install can-utils (http://elinux.org/Can-utils) but I receive the error "autoreconf: command not found" while running autogen.sh script.
   Not sure what package I'm missing for this.

   Any advice to get me started is much appreciated!

   Posted 10 years ago #
2. 

   lricher
   

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   can-utils is now installed but I still can't access the bus.

   Posted 10 years ago #
3. 

   mojo
   

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   This is the kernel driver:
   http://cateee.net/lkddb/web-lkddb/I2C_EG20T.html
   The module is i2c-eg20t
   The kernel version must be > or = 3.0
   The SliTaz-4.0 kernel @ 2.6.37 is too old,the option is not available.
   The kernel driver option not enabled on the cooking kernel.
   tux@slitaz:~$ zcat /proc/config.gz | grep -i CONFIG_I2C_EG20T
   # CONFIG_I2C_EG20T is not set

   Posted 10 years ago #
4. 

   lricher
   

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   Thanks for quick reply, I will stop wasting time with this then!
   Then I should find CAN device with driver supported by kernel 2.6.37

   Posted 10 years ago #
5. 

   lricher
   

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   Is there a way to upgrade kernel to > 3.0??

   Posted 10 years ago #
6. 

   Anonymous
   

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   Upgrading to a 3.? kernel is, (as far as I know), not possible on SliTaz, likely you would have to recompile it yourself.

   Might I suggest you take a look at 'antiX base' as a possible alternative distro, comes with 3.7.10 kernel, & is quite a lightweight distro based on Debian; which is more mainstream for doing what you seem to be wanting to do.
   http://sourceforge.net/projects/antix-linux/files/Final/antiX-13.1/

   Posted 10 years ago #
7. 

   lricher
   

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   Ok thank you for the information! Greatly appreciated

   I found this link on SliTaz forum:
   http://forum.slitaz.org/topic/new-cooking-is-now-kernel-3240#post-22978
   Which says new cooking is 3.2.40 kernel.
   Could I potentially install this?

   Sorry if these are stupid questions. I am new to this

   Posted 10 years ago #
8. 

   mojo
   

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   Hold off I will add i2c-eg20t module to cooking.
   Then build an iso which includes the module.
   It takes about 4 hours to rebuild the kernel.

   Posted 10 years ago #
9. 

   lricher
   

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   You are my hero, mojo!

   Posted 10 years ago #
10. 

    mojo
    

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    It's too early to celebrate.
    The commit or change to the kernel is here:
    http://hg.slitaz.org/wok/rev/9b4ae27c0f41
    You can view the log which shows the progress of the kernel build here:
    http://cook.slitaz.org/cooker.cgi?pkg=linux
    Stats on the build server:
    http://tank.slitaz.org/graphs.php

    Posted 10 years ago #
11. 

    lricher
    

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    I really appreciate you taking the time to do that for me.

    Posted 10 years ago #
12. 

    mojo
    

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    I built the base iso, it's only 12MB.
    Tested with qemu and virtualbox.
    Login as root,password: root
    Run lsmod command after booting to verify i2c-eg20t is auto loading.
    If it's not auto loading:
    Hit tab key at SliTaz Live on the boot menu, add modprobe=i2c-eg20t
    Hit Enter to execute boot.
    On an install add i2c-eg20t to /etc/rcS.conf LOAD_MODULES="i2c-eg20t"
    Download: http://www.mediafire.com/download/f4q533dqosb9fug/slitaz-base.iso
    Download: http://www.mediafire.com/view/69itbtemlmlau34/slitaz-base.md5

    Posted 10 years ago #
13. 

    lricher
    

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    Thank you so much for doing that.
    I will let you know how it goes.

    Posted 10 years ago #
14. 

    lricher
    

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    Thank you again for this. I finally got around to installing this iso to disk.
    It does, indeed, load my module!

    Posted 10 years ago #

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