如何獲取Linux內核模塊的選項列表？

Question

例如，loop模塊有一個max_loop選項。

一般來說，我怎麼知道內核模塊支持哪些選項？或者，我在哪裏可以找到列表，我是否應該深入瞭解源代碼？

Answer 1

Documentation/kernel-parameters.txt在內核文檔中會給你很多，模塊中的任何內容都可以從modinfo中收集到。

# 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)