gcc 10 compliant

SBC/rpi-4/device_driver/firmware/bias.c

@@ -1,6 +1,9 @@
 
 #include "bias.h"
 
+int fd_i2c_bias;
+int i2c_bias_handler;
+
 
 void init_I2C_bias() {
 	

SBC/rpi-4/device_driver/firmware/bias.h

@@ -29,8 +29,8 @@
 
 #define ADDR_BIAS 0x2C
 
-int fd_i2c_bias;
-int i2c_bias_handler;
+extern int fd_i2c_bias;
+extern int i2c_bias_handler;
 
 void openI2C_bias(void);
 void write_I2C_bias(uint8_t control, uint8_t data);

SBC/rpi-4/device_driver/firmware/measure.c

@@ -1,6 +1,10 @@
 
 #include "measure.h"
 
+int i2c_measure_module_active;
+int fd_i2c_measure;
+int i2c_measure_handler;
+
 int config_I2C_measure(){
 	
 	uint8_t measure_config[1];

SBC/rpi-4/device_driver/firmware/measure.h

@@ -27,10 +27,10 @@
 #define ADDR_MEAS 0x34
 
 
-int i2c_measure_module_active;
+extern int i2c_measure_module_active;
 
-int fd_i2c_measure;
-int i2c_measure_handler;
+extern int fd_i2c_measure;
+extern int i2c_measure_handler;
 
 void openI2C_measure(void);
 void read_I2C_measure(int *current, int *temperature);

SBC/rpi-4/device_driver/firmware/register.c

@@ -1,5 +1,12 @@
 #include "register.h"
 
+char macaddress[24];
+char* radiocall; 
+char* radiolocator;
+char gatewareversion[16];
+char driverversion[16];
+char firmwareversion[16]; 
+char fpgatype[16];
 
 #define SA      struct sockaddr
 #define MAXLINE 4096

SBC/rpi-4/device_driver/firmware/register.h

@@ -21,13 +21,13 @@ struct _PROPERTY {
 	PROPERTY* next_property;
 };
 
-char macaddress[24];
-char* radiocall; 
-char* radiolocator;
-char gatewareversion[16];
-char driverversion[16];
-char firmwareversion[16]; 
-char fpgatype[16];
+extern char macaddress[24];
+extern char* radiocall; 
+extern char* radiolocator;
+extern char gatewareversion[16];
+extern char driverversion[16];
+extern char firmwareversion[16]; 
+extern char fpgatype[16];
 
 int getMacAddress(void);
 void loadProperties(char* filename);