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I often use modprobe to set a value of a parameter for a kernel module: modprobe bnx2 disable_msi=1 But before doing that sometimes I want to check what the current ...
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  1. #1
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    finding the value of a kernel module parameter: modprobe / modinfo?


    I often use modprobe to set a value of a parameter for a kernel module:

    modprobe bnx2 disable_msi=1

    But before doing that sometimes I want to check what the current setting of the "disable_msi" option is. Is there a way to check this?

    I did try "modinfo -p bnx2"

    enable_entropy:Allow bnx2 to populate the /dev/random entropy pool
    disable_msi:Disable Message Signaled Interrupt (MSI)

    But this seems to just list the available options without really telling me what the current set value is.

    Any pointers?

    --
    Rahul

  2. #2
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    Aug 2011
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    re:finding the value of a kernel module parameter: modprobe / modinfo?

    I had the same question and a post on linuxquestions (show-options-that-kernel-module-was-loaded-with #3) pointed out that some modules choose to expose their parameter values through /sys but are not required to do so:
    Code:
    $ cat /sys/module/<module_name>/parameters/<param_name>
    (I was lucky and the one I was interested in was there.)

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