Added API to get libftdi library version.

[libftdi] / examples / bitbang_cbus.c

diff --git a/examples/bitbang_cbus.c b/examples/bitbang_cbus.c
index e3f2a41..f47c359 100644 (file)
--- a/examples/bitbang_cbus.c
+++ b/examples/bitbang_cbus.c
@@ -34,20 +34,26 @@
 #include <stdlib.h>
 #include <ftdi.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
     struct ftdi_context ftdic;
-    int f,i;
+    int f;
     unsigned char buf[1];
     unsigned char bitmask;
-    unsigned char input[10];
+    char input[10];
+    int retval = 0;
 
-    ftdi_init(&ftdic);
+    if (ftdi_init(&ftdic) < 0)
+    {
+        fprintf(stderr, "ftdi_init failed\n");
+        return EXIT_FAILURE;
+    }
 
     f = ftdi_usb_open(&ftdic, 0x0403, 0x6001);
     if (f < 0 && f != -5)
     {
         fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(&ftdic));
+        ftdi_deinit(&ftdic);
         exit(-1);
     }
     printf("ftdi open succeeded: %d\n",f);
@@ -63,7 +69,9 @@ int main(int argc, char **argv)
         if (f < 0)
         {
             fprintf(stderr, "set_bitmode failed for 0x%x, error %d (%s)\n", bitmask, f, ftdi_get_error_string(&ftdic));
-            exit(-1);
+            ftdi_usb_close(&ftdic);
+            ftdi_deinit(&ftdic);
+            retval = -1;
         }
 
         // read CBUS
@@ -71,6 +79,8 @@ int main(int argc, char **argv)
         if (f < 0)
         {
             fprintf(stderr, "read_pins failed, error %d (%s)\n", f, ftdi_get_error_string(&ftdic));
+            ftdi_usb_close(&ftdic);
+            ftdi_deinit(&ftdic);
             exit(-1);
         }
         printf("Read returned 0x%01x\n", buf[0] & 0x0f);
@@ -80,4 +90,6 @@ int main(int argc, char **argv)
 
     ftdi_usb_close(&ftdic);
     ftdi_deinit(&ftdic);
+
+    return 0;
 }