linux:kernel:kernel_drivers:hello_world
Differences
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| linux:kernel:kernel_drivers:hello_world [2019/12/14 17:18] – [Check if the module is loaded] peter | linux:kernel:kernel_drivers:hello_world [2022/10/08 11:41] (current) – [Load the module] peter | ||
|---|---|---|---|
| Line 116: | Line 116: | ||
| </ | </ | ||
| - | This will not display anything. | + | <WRAP info> |
| + | **NOTE: | ||
| + | </ | ||
| ---- | ---- | ||
| Line 125: | Line 128: | ||
| lsmod | lsmod | ||
| </ | </ | ||
| - | |||
| - | and check if the **hello** module is loaded. | ||
| returns: | returns: | ||
| Line 162: | Line 163: | ||
| <code bash> | <code bash> | ||
| sudo rmmod hello.ko | sudo rmmod hello.ko | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | |||
| - | ===== Check message from module ===== | ||
| - | |||
| - | As mentioned above when the module was loaded it did not display that " | ||
| - | |||
| - | This message is actually written to the system log. | ||
| - | |||
| - | <code bash> | ||
| - | tail / | ||
| - | </ | ||
| - | |||
| - | returns: | ||
| - | |||
| - | <code bash> | ||
| - | Dec 14 17:07:07 peter-bigmamba kernel: [74537.686507] Goodbye, cruel world | ||
| </ | </ | ||
| ---- | ---- | ||
linux/kernel/kernel_drivers/hello_world.1576343917.txt.gz · Last modified: 2020/07/15 09:30 (external edit)