X-Git-Url: http://developer.intra2net.com/git/?a=blobdiff_plain;f=examples%2Fsimple.c;h=8abd7b3944a88ebf9a0e5bc9791f3b1872d07295;hb=978341023343a6240205891402bf7320cfcccdd5;hp=d3599c5076dc1a488c0a01d8d3a850096c2ff9c2;hpb=cb6250fae3c448dbcf8a780d8ea621c88a5b66d2;p=libftdi

diff --git a/examples/simple.c b/examples/simple.c
index d3599c5..8abd7b3 100644
--- a/examples/simple.c
+++ b/examples/simple.c
@@ -8,25 +8,36 @@
 #include <stdio.h>
 #include <ftdi.h>
 
-int main(int argc, char **argv)
+int main(void)
 {
     int ret;
     struct ftdi_context ftdic;
-    ftdi_init(&ftdic);
+    if (ftdi_init(&ftdic) < 0)
+    {
+        fprintf(stderr, "ftdi_init failed\n");
+        return EXIT_FAILURE;
+    }
 
-    if((ret = ftdi_usb_open(&ftdic, 0x0403, 0x6001)) < 0) {
+    if ((ret = ftdi_usb_open(&ftdic, 0x0403, 0x6001)) < 0)
+    {
         fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
         return EXIT_FAILURE;
     }
 
     // Read out FTDIChip-ID of R type chips
-    if (ftdic.type == TYPE_R) {
+    if (ftdic.type == TYPE_R)
+    {
         unsigned int chipid;
         printf("ftdi_read_chipid: %d\n", ftdi_read_chipid(&ftdic, &chipid));
         printf("FTDI chipid: %X\n", chipid);
     }
 
-    ftdi_usb_close(&ftdic);
+    if ((ret = ftdi_usb_close(&ftdic)) < 0)
+    {
+        fprintf(stderr, "unable to close ftdi device: %d (%s)\n", ret, ftdi_get_error_string(&ftdic));
+        return EXIT_FAILURE;
+    }
+
     ftdi_deinit(&ftdic);
 
     return EXIT_SUCCESS;