A threaded IRQ is registered using A threaded IRQ is registered using request_threaded_irq()
. This function only takes one additional parameter than the
request_irq()
diff --git a/lkmpg-for-ht.html b/lkmpg-for-ht.html
index 9efb3f2..455f978 100644
--- a/lkmpg-for-ht.html
+++ b/lkmpg-for-ht.html
@@ -5527,74 +5527,76 @@ halves, but using threads.
79
80 pr_info("Successfully requested BUTTON1 IRQ # %d\n", button_irqs[0]);
81
-82 ret = request_threaded_irq(
-83 button_irqs[0], button_top_half, button_bottom_half,
-84 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "gpiomod#button1", &buttons[0]);
-85
-86 if (ret) {
-87 pr_err("Unable to request IRQ: %d\n", ret);
-88 goto fail2;
-89 }
-90
-91 ret = gpio_to_irq(buttons[1].gpio);
-92
-93 if (ret < 0) {
-94 pr_err("Unable to request IRQ: %d\n", ret);
-95 goto fail2;
-96 }
-97
-98 button_irqs[1] = ret;
-99
-100 pr_info("Successfully requested BUTTON2 IRQ # %d\n", button_irqs[1]);
-101
-102 ret = request_threaded_irq(
-103 button_irqs[1], button_top_half, button_bottom_half,
-104 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "gpiomod#button2", &buttons[1]);
-105
-106 if (ret) {
-107 pr_err("Unable to request IRQ: %d\n", ret);
-108 goto fail3;
-109 }
-110
-111 return 0;
+82 ret = request_threaded_irq(button_irqs[0], button_top_half,
+83 button_bottom_half,
+84 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+85 "gpiomod#button1", &buttons[0]);
+86
+87 if (ret) {
+88 pr_err("Unable to request IRQ: %d\n", ret);
+89 goto fail2;
+90 }
+91
+92 ret = gpio_to_irq(buttons[1].gpio);
+93
+94 if (ret < 0) {
+95 pr_err("Unable to request IRQ: %d\n", ret);
+96 goto fail2;
+97 }
+98
+99 button_irqs[1] = ret;
+100
+101 pr_info("Successfully requested BUTTON2 IRQ # %d\n", button_irqs[1]);
+102
+103 ret = request_threaded_irq(button_irqs[1], button_top_half,
+104 button_bottom_half,
+105 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+106 "gpiomod#button2", &buttons[1]);
+107
+108 if (ret) {
+109 pr_err("Unable to request IRQ: %d\n", ret);
+110 goto fail3;
+111 }
112
-113/* cleanup what has been setup so far */
-114fail3:
-115 free_irq(button_irqs[0], NULL);
-116
-117fail2:
-118 gpio_free_array(buttons, ARRAY_SIZE(leds));
-119
-120fail1:
-121 gpio_free_array(leds, ARRAY_SIZE(leds));
-122
-123 return ret;
-124}
-125
-126static void __exit bottomhalf_exit(void)
-127{
-128 int i;
-129
-130 pr_info("%s\n", __func__);
+113 return 0;
+114
+115/* cleanup what has been setup so far */
+116fail3:
+117 free_irq(button_irqs[0], NULL);
+118
+119fail2:
+120 gpio_free_array(buttons, ARRAY_SIZE(leds));
+121
+122fail1:
+123 gpio_free_array(leds, ARRAY_SIZE(leds));
+124
+125 return ret;
+126}
+127
+128static void __exit bottomhalf_exit(void)
+129{
+130 int i;
131
-132 /* free irqs */
-133 free_irq(button_irqs[0], NULL);
-134 free_irq(button_irqs[1], NULL);
-135
-136 /* turn all LEDs off */
-137 for (i = 0; i < ARRAY_SIZE(leds); i++)
-138 gpio_set_value(leds[i].gpio, 0);
-139
-140 /* unregister */
-141 gpio_free_array(leds, ARRAY_SIZE(leds));
-142 gpio_free_array(buttons, ARRAY_SIZE(buttons));
-143}
-144
-145module_init(bottomhalf_init);
-146module_exit(bottomhalf_exit);
-147
-148MODULE_LICENSE("GPL");
-149MODULE_DESCRIPTION("Interrupt with top and bottom half");
+132 pr_info("%s\n", __func__);
+133
+134 /* free irqs */
+135 free_irq(button_irqs[0], NULL);
+136 free_irq(button_irqs[1], NULL);
+137
+138 /* turn all LEDs off */
+139 for (i = 0; i < ARRAY_SIZE(leds); i++)
+140 gpio_set_value(leds[i].gpio, 0);
+141
+142 /* unregister */
+143 gpio_free_array(leds, ARRAY_SIZE(leds));
+144 gpio_free_array(buttons, ARRAY_SIZE(buttons));
+145}
+146
+147module_init(bottomhalf_init);
+148module_exit(bottomhalf_exit);
+149
+150MODULE_LICENSE("GPL");
+151MODULE_DESCRIPTION("Interrupt with top and bottom half");
request_threaded_irq()
. This function only takes one additional parameter than the
request_irq()