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Fix formatting of unsigned int major #298

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Apr 10, 2025
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Fix formatting of unsigned int major #298

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2 changes: 1 addition & 1 deletion lkmpg.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -1024,7 +1024,7 @@ \subsection{Registering A Device}
int register_chrdev(unsigned int major, const char *name, struct file_operations *fops);
\end{code}

Where unsigned int major is the major number you want to request, \cpp|const char *name| is the name of the device as it will appear in \verb|/proc/devices| and \cpp|struct file_operations *fops| is a pointer to the \cpp|file_operations| table for your driver.
Where \cpp|unsigned int major| is the major number you want to request, \cpp|const char *name| is the name of the device as it will appear in \verb|/proc/devices| and \cpp|struct file_operations *fops| is a pointer to the \cpp|file_operations| table for your driver.
A negative return value means the registration failed. Note that we didn't pass the minor number to \cpp|register_chrdev|.
That is because the kernel doesn't care about the minor number; only our driver uses it.

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