consolidated function defs and impls

include/rtl-sdr.h

@@ -58,7 +58,7 @@ int rtlsdr_get_sample_rate(rtlsdr_dev_t *dev);
 
 int rtlsdr_reset_buffer(rtlsdr_dev_t *dev);
 
-int rtlsdr_read_sync(rtlsdr_dev_t *dev, void *buf, uint32_t len, uint32_t *n_read);
+int rtlsdr_read_sync(rtlsdr_dev_t *dev, void *buf, int len, int *n_read);
 
 #ifdef __cplusplus
 }

src/rtl-sdr.c

@@ -30,6 +30,7 @@
 #include "tuner_fc0012.h"
 #include "tuner_fc0013.h"
 #include "tuner_fc2580.h"
+#include "rtl-sdr.h"
 
 typedef struct rtlsdr_tuner {
 	int(*init)(void *);
@@ -579,7 +580,7 @@ const char *rtlsdr_get_device_name(uint32_t index)
 		return "";
 }
 
-rtlsdr_dev_t *rtlsdr_open(int index)
+rtlsdr_dev_t *rtlsdr_open(uint32_t index)
 {
 	int r;
 	int i;