1 files changed, 30 insertions, 0 deletions
diff --git a/multibatt.c b/multibatt.c
new file mode 100644
index 0000000..48d27c4
--- /dev/null
+++ b/multibatt.c
@@ -0,0 +1,30 @@
+#include <u.h>
+#include <libc.h>
+
+char f[] = "/mnt/acpi/battery";
+char buf[512];
+char *s;
+int nb = 0;
+
+void
+main(void)
+{
+	int fd;
+
+	fd = open(f, OREAD);
+	if(fd < 0)
+		sysfatal("open: %r");
+
+	read(fd, buf, sizeof buf);
+
+	buf[strlen(buf)-1] = '\0';
+
+	print("%d\n", atoi(buf)); nb++;
+	for(s = buf; *s != '\0'; s++)
+		if(*s == '\n'){
+			nb++;
+			print("%d\n", atoi(++s));
+		}
+	print("batteries: %d\n", nb);
+	exits("done");
+}