Re: "Unable to get major 81"

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What does your /etc/modules.conf look like?

Mine has the entries (dmask=255 is nice for debugging ;):

 alias char-major-81 videodevX
 alias char-major-81-0 meteor2
 options meteor2 dmask=255

Does /dev/video0 have minor number 0?

Eric Williams wrote:

I've been trying to bring up our new Meteor II capture board using the emlix 1.0 driver, but I've hit a speed bump. I've built the kernel (v2.4.18-3), v4l2 (20020330), and the driver without any problems (well, none I couldn't figure out), but when I try to modprobe meteor2, I get:

    /lib/modules/2.4.18-3custom/kernel/drivers/media/video/videodevX.o:
    init_module: Input/output error Hint: insmod errors can be caused
    by incorrect module parameters, including invalid IO or IRQ
    parameters.       You may find more information in syslog or the
    output from dmesg
    /lib/modules/2.4.18-3custom/kernel/drivers/media/video/videodevX.o:
    insmod
    /lib/modules/2.4.18-3custom/kernel/drivers/media/video/videodevX.o
    failed
    /lib/modules/2.4.18-3custom/kernel/drivers/media/video/videodevX.o:
    insmod meteor2 failed

Looking at the syslog, I see:

    Nov 22 19:05:08 gremlin kernel: Video for Linux One (2.2.16).
    Major device: 81 Nov 22 19:05:08 gremlin kernel: Unable to get
major 81 for v4l1/2

There are major 81 devices in /dev already (video0, vtx0, vbi0, radio0, etc.).

Any ideas as to what I'm doing wrong?  Thanks in advance.
--
Eric Williams
Controls Group
Advanced Light Source
Lawrence Berkeley Laboratory








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