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nobody
Asked: 2020-09-11 05:33:52 +0800 CST

modinfo 一些模块问题与理解参数

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示例来自

modinfo i915 | fgrep parm
force_probe:Force probe the driver for specified devices. See                               
CONFIG_DRM_I915_FORCE_PROBE for details. (charp)

什么意思（charp）？真/假或一些Nr。或者是其他东西？

grep CONFIG_DRM_I915_FORCE_PROBE /boot/config-5.4.0-47-generic 
CONFIG_DRM_I915_FORCE_PROBE=""

对我什么都没说。

drivers kernel 20.04

1 个回答

  1. Best Answer

    说明可以在linux/drivers/gpu/drm/i915/Kconfig 中找到：

    config DRM_I915_FORCE_PROBE
    string "Force probe driver for selected new Intel hardware"
    depends on DRM_I915
    help
      This is the default value for the i915.force_probe module
      parameter. Using the module parameter overrides this option.

      Force probe the driver for new Intel graphics devices that are
      recognized but not properly supported by this kernel version. It is
      recommended to upgrade to a kernel version with proper support as soon
      as it is available.

      Use "" to disable force probe. If in doubt, use this.

      Use "<pci-id>[,<pci-id>,...]" to force probe the driver for listed
      devices. For example, "4500" or "4500,4571".

      Use "*" to force probe the driver for all known devices.

    所以显然它是一个字符串，在这种情况下，我假设charp表示char pointer。

    • 1

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