diff --git a/source/event_gpio.c b/source/event_gpio.c
index c63fdbd..9f5acd6 100644
--- a/source/event_gpio.c
+++ b/source/event_gpio.c
@@ -85,6 +85,27 @@ BBIO_err gpio_export(unsigned int gpio)
goto exit;
}
+ // Is GPIO an LED?
+ if ( ((gpio >= USR_LED_GPIO_MIN) && (gpio <= USR_LED_GPIO_MAX))
+ ||
+ ( beaglebone_blue()
+ &&
+ (
+ (gpio == USR_LED_RED)
+ || (gpio == USR_LED_GREEN)
+ || (gpio == BAT25)
+ || (gpio == BAT50)
+ || (gpio == BAT75)
+ || (gpio == BAT100)
+ || (gpio == WIFI)
+ )
+ )
+ )
+ {
+ syslog(LOG_WARNING, "Adafruit_BBIO: gpio_export: %u not applicable to built-in LEDs", gpio);
+ return BBIO_OK; // export is not applicable to the USR LED pins
+ }
+
// already exported by someone else?
char gpio_path[64];
snprintf(gpio_path, sizeof(gpio_path), "/sys/class/gpio/gpio%d", gpio);
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