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    <blockquote> <p>my ultimate problem is that I want to have the exact same function execute with different variables.</p> </blockquote> <p>I assume you are already able to create the /proc files then. As <a href="https://stackoverflow.com/a/16148142/912144">Ilya</a> said, <code>create_proc_entry</code> does the job (even though there is a better alternative).</p> <blockquote> <p>The reason I'm having difficulty with this is that the function protoypes for reading/writing from proc files don't seem to allow this behavior</p> </blockquote> <p>Well actually it does. If you look at the prototype of either function:</p> <pre><code>int read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *data); ^^^^^^^^^^ int write_proc(struct file *file, const char *buf, unsigned long count, void *data); ^^^^^^^^^^ </code></pre> <p>You will see a parameter called <code>data</code> which is a generic <code>void *</code>. Using this parameter, you can make the same function work with different variables.</p> <p>Now <code>create_proc_entry</code> is not the best function for this. In fact, there is a replacement for it<sup>1</sup>, which also matches a better naming scheme for /proc functions. Looking at <a href="https://github.com/torvalds/linux/blob/master/fs/proc/generic.c#L708" rel="nofollow noreferrer">the source code itself</a>, you can see the signature of <code>create_proc_data</code> and how it works. Using this function, you can provide the pointer to the working area of the /proc file. This pointer will be passed to both your read and write functions.</p> <p>This is very similar to how <code>pthread</code> work for example, and many other libraries that take function pointers as callbacks.</p> <hr> <p><sup>1</sup> If I'm not mistaken, <code>create_proc_entry</code> is deprecated.</p>
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    1. COI recommend looking at the implementation of /proc through the link I provided. It's very simple and quite informative. In fact, it's easier to read through that and use it, than to try to find information from incomplete documentation or outdated blog posts.
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    2. COThanks so much, sorry for the delay in accepting the answer, I haven't had much time to play with this lately. For some reason, the `data` thing totally slipped my mind even though it was staring me in the face! Thanks again for all the details and links!
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