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6
index.html
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@ -17,7 +17,7 @@
<h2 class='titleHead'>The Linux Kernel Module Programming Guide</h2>
<div class='author'><span class='ecrm-1200'>Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram, Jim Huang</span></div><br />
<div class='date'><span class='ecrm-1200'>August 12, 2021</span></div>
<div class='date'><span class='ecrm-1200'>August 16, 2021</span></div>
@ -1339,7 +1339,7 @@ this. First, the driver itself can print the newly assigned number and we
can make the device file by hand. Second, the newly registered device will
have an entry in <span class='obeylines-h'><span class='verb'><span class='ectt-1000'>/proc/devices</span></span></span>, and we can either make the device file by
hand or write a shell script to read the file in and make the device file. The
third method is we can have our driver make the the device file using the
third method is that we can have our driver make the device file using the
<code> <span class='ectt-1000'>device_create</span>
@ -1599,7 +1599,7 @@ with a pointer to the disk location or locations where the file’s data can be
found.
</p><!-- l. 948 --><p class='indent'> Because we don’t get called when the file is opened or closed, there’s nowhere for
us to put <code> <span class='ectt-1000'>try_module_get</span>
</code> and <code> <span class='ectt-1000'>try_module_put</span>
</code> and <code> <span class='ectt-1000'>module_put</span>
</code> in this module, and if the file is opened and then the module is removed, there’s no
way to avoid the consequences.
</p><!-- l. 950 --><p class='indent'> Here a simple example showing how to use a <span class='obeylines-h'><span class='verb'><span class='ectt-1000'>/proc</span></span></span> file. This is the HelloWorld for

6
lkmpg-for-ht.html
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@ -17,7 +17,7 @@
<h2 class='titleHead'>The Linux Kernel Module Programming Guide</h2>
<div class='author'><span class='ecrm-1200'>Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram, Jim Huang</span></div><br />
<div class='date'><span class='ecrm-1200'>August 12, 2021</span></div>
<div class='date'><span class='ecrm-1200'>August 16, 2021</span></div>
@ -1339,7 +1339,7 @@ this. First, the driver itself can print the newly assigned number and we
can make the device file by hand. Second, the newly registered device will
have an entry in <span class='obeylines-h'><span class='verb'><span class='ectt-1000'>/proc/devices</span></span></span>, and we can either make the device file by
hand or write a shell script to read the file in and make the device file. The
third method is we can have our driver make the the device file using the
third method is that we can have our driver make the device file using the
<code> <span class='ectt-1000'>device_create</span>
@ -1599,7 +1599,7 @@ with a pointer to the disk location or locations where the file’s data can be
found.
</p><!-- l. 948 --><p class='indent'> Because we don’t get called when the file is opened or closed, there’s nowhere for
us to put <code> <span class='ectt-1000'>try_module_get</span>
</code> and <code> <span class='ectt-1000'>try_module_put</span>
</code> and <code> <span class='ectt-1000'>module_put</span>
</code> in this module, and if the file is opened and then the module is removed, there’s no
way to avoid the consequences.
</p><!-- l. 950 --><p class='indent'> Here a simple example showing how to use a <span class='obeylines-h'><span class='verb'><span class='ectt-1000'>/proc</span></span></span> file. This is the HelloWorld for