如何获取linux内核模块的选项列表？

Question

例如， loop模块有一个max_loop选项。

通常，我如何知道内核模块支持哪些选项？ 或者，我在哪里可以找到列表，我应该深入了解源代码吗？

Answer 1

Documentation/kernel-parameters.txt将为您提供许多内容，并且可以从modinfo收集任何模块中的任何内容。

# modinfo radeon
 ...
parm:           no_wb:Disable AGP writeback for scratch registers (int)
parm:           modeset:Disable/Enable modesetting (int)
parm:           dynclks:Disable/Enable dynamic clocks (int)
parm:           r4xx_atom:Enable ATOMBIOS modesetting for R4xx (int)
parm:           vramlimit:Restrict VRAM for testing (int)
parm:           agpmode:AGP Mode (-1 == PCI) (int)
parm:           gartsize:Size of PCIE/IGP gart to setup in megabytes (32,64, etc) (int)
parm:           benchmark:Run benchmark (int)
parm:           test:Run tests (int)
parm:           connector_table:Force connector table (int)
parm:           tv:TV enable (0 = disable) (int)
parm:           new_pll:Select new PLL code (int)
parm:           audio:Audio enable (0 = disable) (int)
parm:           disp_priority:Display Priority (0 = auto, 1 = normal, 2 = high) (int)
parm:           hw_i2c:hw i2c engine enable (0 = disable) (int)
parm:           pm:enable power management (0 = disable) (int)