Re: [Linux-fbdev-users] Getting started

[Tiancheng S. <ts...@id...>]

try use "mknod (root) instead of "mkdir".=20

Tiancheng Song
Software Engineering
IDERS Incorporated
Email: ts...@id...
Ph: (204) 779-5400 x245
http://www.iders.ca

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  ----- Original Message -----=20
  From: William Estrada=20
  To: lin...@li...=20
  Sent: Wednesday, August 17, 2005 12:34 PM
  Subject: [Linux-fbdev-users] Getting started


  Hi guys,

    Would someone please point me to a 'Getting started' URL for =
framebuffer
  support?

    I am running Fedora Core 4 and I have rebuilt the kernel to make =
sure
  FB support is in the kernel.  I have a simple FB program that I have=20
  compiled but everytime I try to run it, I get:

    Error: cannot open framebuffer device /dev/fb0. - No such device =
rc=3D-1

    The open code looks like this:

        // Open the file for reading and writing
        char*  FB   =3D "/dev/fb0";
        int    fbfd =3D 0;
        fbfd =3D open( FB, O_RDWR);
        if (fbfd < 0) {
          printf("Error: cannot open framebuffer device %s. - %s =
rc=3D%d\n",
                 FB, strerror(errno), fbfd);
            exit(1);
        }
        printf("The framebuffer device was opened successfully. - %d\n", =
fbfd );

    I have done the mkdir:

    [wre00@Shrek FB]$ ls -lrt /dev/fb*
    crwxrwxr-x  1 wre00 root 29, 0 Aug 17 10:05 /dev/fb0

    Any ideas/help??

  --=20
    William Estrada   --  MrUmunhum at popdial dot com  --  408-997-0743
    Ymessenger ID: MrUmunhum
    HTTP://Mt-Umunhum-Wireless.net