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I/O: Don't throw an exception when trying to release unused pins

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gohai
2015-10-12 00:05:34 +02:00
parent 61e68fb1e5
commit eb240c6192
1 changed files with 4 additions and 2 deletions
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java/libraries/io/src/processing/io/GPIO.java
+4 -2
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@@ -492,8 +492,10 @@ public class GPIO {
if (ret == -2) { // ENOENT
System.err.println("Make sure your kernel is compiled with GPIO_SYSFS enabled");
}
// EINVAL is also returned when trying to unexport pins that weren't exported to begin with
throw new RuntimeException(NativeInterface.getError(ret));
// EINVAL is returned when trying to unexport pins that weren't exported to begin with, ignore this case
if (ret != -22) {
throw new RuntimeException(NativeInterface.getError(ret));
}
}
}