kinect_upload_fw: print more meaningful error message on failure

diff --git a/kinect_upload_fw/kinect_upload_fw.c b/kinect_upload_fw/kinect_upload_fw.c
index 51ef81e..36532fa 100644 (file)
--- a/kinect_upload_fw/kinect_upload_fw.c
+++ b/kinect_upload_fw/kinect_upload_fw.c
@@ -32,6 +32,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
+#include <string.h>
 #include <errno.h>
 #include <libusb.h>
 
@@ -128,7 +129,7 @@ int main(int argc, char** argv) {
        }
        FILE* fw = fopen(filename, "r");
        if(fw == NULL) {
-               fprintf(stderr, "Failed to open %s: error %d", filename, errno);
+               fprintf(stderr, "Failed to open %s: %s\n", filename, strerror(errno));
                return errno;
        }