dweet fix again

app/controller/drivers/adafruit/source/common_dht_read.h

@@ -0,0 +1,51 @@
+// Copyright (c) 2014 Adafruit Industries
+// Author: Tony DiCola
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+#ifndef COMMON_DHT_READ_H
+#define COMMON_DHT_READ_H
+
+#include <stdint.h>
+
+// Define errors and return values.
+#define DHT_ERROR_TIMEOUT -1
+#define DHT_ERROR_CHECKSUM -2
+#define DHT_ERROR_ARGUMENT -3
+#define DHT_ERROR_GPIO -4
+#define DHT_SUCCESS 0
+
+// Define sensor types.
+#define DHT11 11
+#define DHT22 22
+#define AM2302 22
+
+// Busy wait delay for most accurate timing, but high CPU usage.
+// Only use this for short periods of time (a few hundred milliseconds at most)!
+void busy_wait_milliseconds(uint32_t millis);
+
+// General delay that sleeps so CPU usage is low, but accuracy is potentially bad.
+void sleep_milliseconds(uint32_t millis);
+
+// Increase scheduling priority and algorithm to try to get 'real time' results.
+void set_max_priority(void);
+
+// Drop scheduling priority back to normal/default.
+void set_default_priority(void);
+
+#endif