perf: updated isr handler

README.md

@@ -118,7 +118,7 @@ int main(void)
     return 0;
 }
 
-void zh_avr_pcf8574_event_handler(zh_avr_pcf8574_event_on_isr_t *event) // Required only if used input GPIO interrupts.
+void zh_avr_pcf8574_event_handler(zh_avr_pcf8574_event_on_isr_t *event) // Do not delete! Leave blank if interrupts are not used.
 {
     printf("Interrupt happened on device address 0x%02X on GPIO number %d at level %d.\n", event->i2c_address, event->gpio_number, event->gpio_level);
     printf("Interrupt Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));

include/zh_avr_pcf8574.h

@@ -133,7 +133,7 @@ extern "C"
     /**
      * @brief PCF8574 ISR handler.
      */
-    void zh_avr_pcf8574_isr_handler(void);
+    BaseType_t zh_avr_pcf8574_isr_handler(void);
 
 #ifdef __cplusplus
 }

version.txt

@@ -1 +1 @@
-1.0.0
+1.1.0

zh_avr_pcf8574.c

@@ -129,17 +129,14 @@ static avr_err_t _zh_avr_pcf8574_configure_interrupts(const zh_avr_pcf8574_init_
     return AVR_OK;
 }
 
-void zh_avr_pcf8574_isr_handler(void)
+BaseType_t zh_avr_pcf8574_isr_handler(void)
-{
-    if ((PIND & (1 << _interrupt_gpio)) == 0)
 {
     BaseType_t xHigherPriorityTaskWoken = pdFALSE;
-        xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
+    if ((PIND & (1 << _interrupt_gpio)) == 0)
-        if (xHigherPriorityTaskWoken == pdTRUE)
     {
-            portYIELD();
+        xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
-        };
     }
+    return xHigherPriorityTaskWoken;
 }
 
 static void _zh_avr_pcf8574_isr_processing_task(void *pvParameter)