Added watch function

README.md

@@ -39,6 +39,7 @@ Available options:
 --reset      : Reset all fans to their default mode
 --sensors    : Print sensor readings even if setting a fan speed
 --compact    : Print sensor reading in a compact one-line per card format
+--watch N    : Keep printing output every N seconds
 ```
 
 ### Examples:

evga-icx.c

@@ -20,7 +20,8 @@ static const char helpstring[] = "Available options:\n"
 								 "      [+/-]N to set that fan to an RPM offset from the GPU-controlled speed\n"
 								 "--reset      : Reset all fans to their default mode\n"
 								 "--sensors    : Print sensor readings even if setting a fan speed \n"
-								 "--compact    : Print sensor reading in a compact one-line per card format\n";
+								 "--compact    : Print sensor reading in a compact one-line per card format\n"
+								 "--watch N    : Keep printing output every N seconds\n";
 								 
 void print_gpu_info(int gpu_num, struct card_info gpus[], int compact);
 
@@ -31,6 +32,7 @@ int main (int argc, char **argv)
 	int print_info = 0;
 	int compact = 0;
 	int gpu_num = -1;    /* Card to control */
+	int watch = -1;
 	char *fan_speed[ICX3_MAX_FANS] = {NULL}; 
 	
 	/* Input parsing */
@@ -69,6 +71,14 @@ int main (int argc, char **argv)
 			print_info = 1;
 		} else if (strcmp(argv[i], "--compact") == 0) {
 			compact = 1;
+		} else if (strcmp(argv[i], "--watch") == 0) {
+			i++;
+			if (i < argc) {
+				watch = atoi(argv[i]);
+			} else {
+				printf(helpstring);
+				return -1;
+			}
 		} else {
 			printf(helpstring);
 			return 0;
@@ -116,6 +126,7 @@ int main (int argc, char **argv)
 	}
 	
 	/* print sensor info */
+print:
 	if (print_info) {
 		if (gpu_num == -1) {
 			for (int i = 0; i < gpu_count; i++){
@@ -125,7 +136,10 @@ int main (int argc, char **argv)
 			print_gpu_info(gpu_num, gpus, compact);
 		}
 	}
-	
+	if (watch > 0) {
+		sleep(watch);
+		goto print;
+	}
 }
 
 void print_gpu_info(int gpu_num, struct card_info gpus[], int compact) {