test the config_pin() function

Author: pdp7

source/c_pinmux.c

@@ -14,6 +14,7 @@ BBIO_err set_pin_mode(const char *key, const char *mode)
 	FILE *f = NULL;
         fprintf(stderr, "DEBUG: set_pin_mode(): key=%s\n", key);
         fprintf(stderr, "DEBUG: set_pin_mode(): mode=%s\n", mode);
+        config_pin(key, mode);
 
 	if (strlen(key) == 4)	// Key P#_# format, must inject '0' to be P#_0#
 		snprintf(pin, sizeof(pin), "%.3s0%c", key,key[3]);

source/common.c

@@ -491,15 +491,15 @@ int uboot_overlay_enabled(void) {
 */
 /* WORK IN PROGRESS */
 #define BUFFER_SIZE 255
-int config_pin(char *pin, char *mode) {
+int config_pin(const char *pin, const char *mode) {
     const char *cmd = "/usr/bin/config-pin";
     char buffer[BUFFER_SIZE] = "";
     char *result;
     FILE *file = NULL;
 
-    fprintf(stderr, "DEBUG: config_pin(): pin=%s", pin);
-    fprintf(stderr, "DEBUG: config_pin(): mode=%s", mode);
-    fprintf(stderr, "DEBUG: config_pin(): cmd=%s", cmd);
+    fprintf(stderr, "DEBUG: config_pin(): pin=%s\n", pin);
+    fprintf(stderr, "DEBUG: config_pin(): mode=%s\n", mode);
+    fprintf(stderr, "DEBUG: config_pin(): cmd=%s\n", cmd);
 
     file = popen(cmd, "r");
     if (file == NULL) {
@@ -509,9 +509,9 @@ int config_pin(char *pin, char *mode) {
     result = fgets(buffer, BUFFER_SIZE, file);
     pclose(file);
 
-    fprintf(stderr, "DEBUG: config_pin(): buffer=%s", buffer);
-    fprintf(stderr, "DEBUG: config_pin(): result=%p", result);
-    fprintf(stderr, "DEBUG: config_pin(): NULL=%p", NULL);
+    fprintf(stderr, "DEBUG: config_pin(): buffer=%s\n", buffer);
+    fprintf(stderr, "DEBUG: config_pin(): result=%p\n", result);
+    fprintf(stderr, "DEBUG: config_pin(): NULL=%p\n", NULL);
 
     if(result == NULL) {
       return -2;

source/common.h

@@ -80,6 +80,7 @@ BBIO_err load_device_tree(const char *name);
 BBIO_err unload_device_tree(const char *name);
 int device_tree_loaded(const char *name);
 BBIO_err get_pwm_by_key(const char *key, pwm_t **pwm);
+int config_pin(const char *pin, const char *mode);
 
 #define BBIO_LOG_OPTION LOG_CONS | LOG_PID | LOG_NDELAY
 void initlog(int level, const char* ident, int option);