github-mirror/lkmpg
github-mirror/lkmpg
2
0
Fork 0
mirror of https://github.com/sysprog21/lkmpg.git synced 2025-03-13 14:05:10 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Unify device node name "/proc/helloworld" (#33)

Browse Source 
The file name "proc helloworld" was not consistent with that of the later
sentences. The latter sentences use the device node name "/proc/helloworld".
This commit is contained in:
demonsome 2021-08-02 22:59:19 +08:00 committed by GitHub
parent 970ddaba0b
commit 65a8f5a1d6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lkmpg.tex
View File

@ -926,7 +926,7 @@ Because we don't get called when the file is opened or closed, there's nowhere f
Here a simple example showing how to use a \textbf{/proc} file.
This is the HelloWorld for the \textbf{/proc} filesystem.
There are three parts: create the file \textbf{\emph{proc} helloworld} in the function init\_module, return a value (and a buffer) when the file \textbf{/proc/helloworld} is read in the callback function \textbf{procfile\_read}, and delete the file \textbf{/proc/helloworld} in the function cleanup\_module.
There are three parts: create the file \textbf{/proc/helloworld} in the function init\_module, return a value (and a buffer) when the file \textbf{/proc/helloworld} is read in the callback function \textbf{procfile\_read}, and delete the file \textbf{/proc/helloworld} in the function cleanup\_module.
The \textbf{/proc/helloworld} is created when the module is loaded with the function \textbf{proc\_create}.
The return value is a \textbf{struct proc\_dir\_entry} , and it will be used to configure the file \textbf{/proc/helloworld} (for example, the owner of this file).