Posts by siteco.desarrollo

    Hi everyone,

    I need to connect a RFID reader, which protocol is Wiegand. I have connected two wires from reader to my input GPIO 6 and7.

    The thing is that I cannot control changes from high level to low, I suppose, due to its speed.

    I think that the best way could be defining these GPIO as IRQ. ¿Is it possible? ¿How can I do that? ¿Is there any documentation?

    Thank you very much.


    I have a doubt: I need to connect a USB printer to my board (fsimx6V3.1), do I have to change my device tree?
    Each time I connect the printer to my board, I cannot see any folder like "/dev/ttyUB0". It is not recognised.
    For example, connecting USB storage, shows two folders: sda and sda1, which I can mount. The same as with my SD card,
    that shows two folders: mmcblk2 and mmcblk2p1. I need to send some commands to the USB port.

    Thank you !!

    Hi RSchubert,

    thank you very much for your response.

    Even if you are right, it has to be a dot-separated number, I have changed and it does not work.After some tests, I have realised that the problem is DNS resolution. It only works when I change /etc/resolv.conf file with the following content:

    #resolv.conf content manually written

    But after rebooting, it disappears. Something is overwriting this file when the system is rebooted.I need static IP on my board, and I configure that way in /etc/network/interfaces file. I write this explanation because I am not using DHCP client, but I suspect that some script related to this service is clearing my file.

    Any suggestion?

    Thanks again !!

    Hello again,

    I have made a built again, and this time it worked. I do not why but the thing is that now I have python, SSH, git, flask, and every thing i need till today.

    Thanks for your support.

    FYI: In the built working, rootfs.ext4 is a link too. It does not seem to be relevant.

    I am trying to retrieve some information from the internet using git or wget, but both applications say that they cannot resolve address.
    My /etc/network/interfaces file has the following content:

    auto eth0
    iface eth0 inet static
    address 192,168,1,33
    netmask 255,255,255,0
    gateway 192,168,1,1
    dns-nameservers 192,168,1,100 8,8,8,8

    I am inside a LAN with a router. Fedora VM accesses internet withput problems, but my board, does not.

    What configuration do I ha need ?

    Thanks !

    Apart from LVDS and SSH, I need git, python and flask.
    What I do in order to compile this way is launch "make menuconfig" and change settings.
    After that, just "make".
    So far this is what I need, but I think that I will have to include more packages such as Mysql soon.

    More details:

    /etc/init.d/S50sshd script points to /usr/bin/sshd script that does not exist.
    In that folder (/usr/bin/) i can find among others:
    -rwxr-xr-x 1 root root 0 May 28 19:10 ssh*
    -rwxr-xr-x 1 root root 0 May 28 19:10 ssh-add*
    -rwxr-xr-x 1 root root 0 May 28 19:10 ssh-agent*
    -rwxr-xr-x 1 root root 0 May 28 19:10 ssh-keygen*
    -rwxr-xr-x 1 root root 0 May 28 19:10 ssh-keyscan*

    but not sshd script.

    Each time I execute /etc/init.d/S50sshd I can see that inside /var/lock a new file named sshd is created, and the final message of the process is "Starting sshd: OK" , just as the script has to do... but keys are not generated because sshd script in /usr/bin does not exist.

    This is the can I solve it??

    I can add one more thing.

    I have an older compilation where I got four files:
    * rootfs.ubifs
    * rootfs.ext4
    * armstonea9.dtb
    In this compilation, SSH works fine.

    In my other compilations, instead of those files y get these:
    * rootfs.ubifs
    * rootfs.ext2
    * armstonea9.dtb
    *Link to rootfs.ext4 that points to nothing

    Could this be relevant ??

    I am not using the first built because It does not have LVDS output, and I need it.

    Thanks !!

    Thanks again but in my case, it does not work. Furthermore, I do not have any ssh_host_* file and after rebuilding builroot+kernel and carrying out same steps, unfortunately the same out come.


    One more detail I can add is that in my folder /var/run there is not a file with the process ID, meaning it is not running, is not it?

    thanks a lot for your response. irisangel.

    After applying your solution nothing happens.
    The content of my ssh folder is the following:
    * ssh_config --> empty
    *sshd_config--> empty
    *moduli --> empty

    I have never had any "ssh_host_*" file.

    Thanks again !


    I have my sshd_config file totally empty.
    When booting the board I get the message " Starting sshd: OK" but it does not generate keys.
    I have mounted the file system as "rw" and restart sshd executing "S50sshd restart" in "int.d" folder. Nothing happens.

    How can I check if sshd server is up and running?
    Do I have to activate any option when compiling buildroot for ssh to work?



    I am using Fedora Virtual Machine from F&S.
    I just call "install_source" script, and launch "make fsimx6_std_defconfig" and "make"

    GCC version:

    [developer@localhost arm]$ gcc --version
    gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
    Copyright (C) 2015 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions. There is NO