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jserv committed Oct 5, 2024
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10 changes: 5 additions & 5 deletions index.html
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<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, 2024</span></div>
<div class='date'><span class='ecrm-1200'>October 5, 2024</span></div>



Expand Down Expand Up @@ -3060,7 +3060,7 @@ <h3 class='sectionHead' id='talking-to-device-files'><span class='titlemark'>9
<a id='x1-39787r196'></a><span class='ecrm-0500'>196</span><span id='textcolor1358'><span class='ectt-0800'>/* Initialize the module - Register the character device */</span></span>
<a id='x1-39789r197'></a><span class='ecrm-0500'>197</span><span id='textcolor1359'><span class='ectt-0800'>static</span></span><span class='ectt-0800'> </span><span id='textcolor1360'><span class='ectt-0800'>int</span></span><span class='ectt-0800'> __init chardev2_init(</span><span id='textcolor1361'><span class='ectt-0800'>void</span></span><span class='ectt-0800'>)</span>
<a id='x1-39791r198'></a><span class='ecrm-0500'>198</span><span class='ectt-0800'>{</span>
<a id='x1-39793r199'></a><span class='ecrm-0500'>199</span><span class='ectt-0800'>    </span><span id='textcolor1362'><span class='ectt-0800'>/* Register the character device (atleast try) */</span></span>
<a id='x1-39793r199'></a><span class='ecrm-0500'>199</span><span class='ectt-0800'>    </span><span id='textcolor1362'><span class='ectt-0800'>/* Register the character device (at least try) */</span></span>
<a id='x1-39795r200'></a><span class='ecrm-0500'>200</span><span class='ectt-0800'>    </span><span id='textcolor1363'><span class='ectt-0800'>int</span></span><span class='ectt-0800'> ret_val = register_chrdev(MAJOR_NUM, DEVICE_NAME, &amp;fops);</span>
<a id='x1-39797r201'></a><span class='ecrm-0500'>201</span>
<a id='x1-39799r202'></a><span class='ecrm-0500'>202</span><span class='ectt-0800'>    </span><span id='textcolor1364'><span class='ectt-0800'>/* Negative values signify an error */</span></span>
Expand Down Expand Up @@ -5137,9 +5137,9 @@ <h4 class='subsectionHead' id='interrupt-handlers1'><span class='titlemark'>15.1
</code> to indicate you are willing to share the IRQ with other interrupt handlers
(usually because a number of hardware devices sit on the same IRQ); use the
<code> <span class='ectt-1000'>IRQF_ONESHOT</span>
</code> to indicate that the IRQ is not reenabled after the handler finished. It should be
noted that in some materials, you may encouter another set of IRQ flags named with
the <code> <span class='ectt-1000'>SA</span>
</code> to indicate that the IRQ is not reenabled after the handler finished. It should be noted
that in some materials, you may encounter another set of IRQ flags named with the
<code> <span class='ectt-1000'>SA</span>
</code> prefix. For example, the <code> <span class='ectt-1000'>SA_SHIRQ</span>
</code> and the <code> <span class='ectt-1000'>SA_INTERRUPT</span>
</code>. Those are the the IRQ flags in the older kernels. They have been removed completely. Today
Expand Down
10 changes: 5 additions & 5 deletions lkmpg-for-ht.html
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@

<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, 2024</span></div>
<div class='date'><span class='ecrm-1200'>October 5, 2024</span></div>



Expand Down Expand Up @@ -3060,7 +3060,7 @@ <h3 class='sectionHead' id='talking-to-device-files'><span class='titlemark'>9
<a id='x1-39787r196'></a><span class='ecrm-0500'>196</span><span id='textcolor1358'><span class='ectt-0800'>/* Initialize the module - Register the character device */</span></span>
<a id='x1-39789r197'></a><span class='ecrm-0500'>197</span><span id='textcolor1359'><span class='ectt-0800'>static</span></span><span class='ectt-0800'> </span><span id='textcolor1360'><span class='ectt-0800'>int</span></span><span class='ectt-0800'> __init chardev2_init(</span><span id='textcolor1361'><span class='ectt-0800'>void</span></span><span class='ectt-0800'>)</span>
<a id='x1-39791r198'></a><span class='ecrm-0500'>198</span><span class='ectt-0800'>{</span>
<a id='x1-39793r199'></a><span class='ecrm-0500'>199</span><span class='ectt-0800'>    </span><span id='textcolor1362'><span class='ectt-0800'>/* Register the character device (atleast try) */</span></span>
<a id='x1-39793r199'></a><span class='ecrm-0500'>199</span><span class='ectt-0800'>    </span><span id='textcolor1362'><span class='ectt-0800'>/* Register the character device (at least try) */</span></span>
<a id='x1-39795r200'></a><span class='ecrm-0500'>200</span><span class='ectt-0800'>    </span><span id='textcolor1363'><span class='ectt-0800'>int</span></span><span class='ectt-0800'> ret_val = register_chrdev(MAJOR_NUM, DEVICE_NAME, &amp;fops);</span>
<a id='x1-39797r201'></a><span class='ecrm-0500'>201</span>
<a id='x1-39799r202'></a><span class='ecrm-0500'>202</span><span class='ectt-0800'>    </span><span id='textcolor1364'><span class='ectt-0800'>/* Negative values signify an error */</span></span>
Expand Down Expand Up @@ -5137,9 +5137,9 @@ <h4 class='subsectionHead' id='interrupt-handlers1'><span class='titlemark'>15.1
</code> to indicate you are willing to share the IRQ with other interrupt handlers
(usually because a number of hardware devices sit on the same IRQ); use the
<code> <span class='ectt-1000'>IRQF_ONESHOT</span>
</code> to indicate that the IRQ is not reenabled after the handler finished. It should be
noted that in some materials, you may encouter another set of IRQ flags named with
the <code> <span class='ectt-1000'>SA</span>
</code> to indicate that the IRQ is not reenabled after the handler finished. It should be noted
that in some materials, you may encounter another set of IRQ flags named with the
<code> <span class='ectt-1000'>SA</span>
</code> prefix. For example, the <code> <span class='ectt-1000'>SA_SHIRQ</span>
</code> and the <code> <span class='ectt-1000'>SA_INTERRUPT</span>
</code>. Those are the the IRQ flags in the older kernels. They have been removed completely. Today
Expand Down

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