gentoo-overlay/sys-power/acpitool/files/acpitool-0.5.1-ac_adapter.patch

Author: Michael Meskes <meskes@debian.org>
Description: Fix reading of ac_adapter information.

--- src/ac_adapter.cpp
+++ src/ac_adapter.cpp
@@ -149,7 +149,7 @@
 int Do_AC_Info_Sys()
 {
     ifstream file_in;
-    char filename[2][65], str[100], temp[100];
+    char filename[2][65], str[100], temp[100], attr[100];
     int ac_count = 0, start = 0, findex = 0;
     DIR *ac_dir;
     char *name, *dirname;
@@ -206,31 +206,40 @@
 
     if(ac_count>0)
     {
-    	for(int i=0; i<ac_count; i++)            /* I don't expect to find > 1, but you never know */
+    	for(int i=0, t=0; i<ac_count; i++)            /* I don't expect to find > 1, but you never know */
     	{
     	    FILE *power_fp = fopen(filename[i], "r");
     	    if(power_fp)                   
     	    {
-		for(int t=0; t<5; t++) 
-		    fgets(str, 100, power_fp);              /* just skip the first 5 lines */
-
-		memset(str, '\0', 100);
-		fgets(str, 100, power_fp);  
+		// see linux-2.6/drivers/power/power_supply_sysfs.c
+		// there can be different number of lines, so read up to 40 lines
+		for(; t<40; t++)
+		{
+		    memset(str, '\0', 100);
+		    fgets(str, 100, power_fp);  
 		
-		if (strlen(str)!=0)
-    		{
-    		    memset(temp, '\0', 100);
-    		    sscanf(str, "%*[^=] %*c %s %[^\n]",temp); 
+		    if (strlen(str)!=0)
+    		    {
+    			memset(temp, '\0', 100);
+			memset(attr, '\0', 100);
+			sscanf(str, "%[^=]s %*s %[^\n]", attr);
+    			sscanf(str, "%*[^=] %*c %s %[^\n]",temp); 
     		    
-    		    /* keep this for debugging */
-    		    /* printf(" from Do_AC_SYS: temp = %s \n", temp);*/
-    		    
-    		    if(strncmp(temp,"1",1)==0)
-    			printf("  AC adapter     : online \n");
-    		    else
-    			printf("  AC adapter     : off-line \n");
+    			/* keep this for debugging */
+    			/* printf(" from Do_AC_SYS: temp = %s \n", temp);*/
+    		   
+			if (strcmp(attr, "POWER_SUPPLY_ONLINE") == 0)
+			{
+    			    if(strncmp(temp,"1",1)==0)
+    				printf("  AC adapter     : online \n");
+    			    else
+    				printf("  AC adapter     : off-line \n");
+
+			    break;
+			}
+		    }
     		}
-    		else
+    		if (t == 40) 
     		    printf("  AC adapter     : <info not available> \n");
     	    }	    	
     	    else