Enhance FTDI driver message once more

[libftdi] / src / ftdi.c

diff --git a/src/ftdi.c b/src/ftdi.c
index 6db70f1..756e6b7 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -163,7 +163,7 @@ struct ftdi_context *ftdi_new(void)
 */
 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface)
 {
-    if (ftdi == NULL || ftdi->usb_dev == NULL)
+    if (ftdi == NULL)
         ftdi_error_return(-2, "USB device unavailable");
 
     switch (interface)
@@ -497,7 +497,7 @@ int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev)
             }
             else
             {
-                ftdi_error_return(-3, "unable to set usb configuration. Make sure ftdi_sio is unloaded!");
+                ftdi_error_return(-3, "unable to set usb configuration. Make sure the default FTDI driver is not in use");
             }
         }
     }
@@ -512,7 +512,7 @@ int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev)
         }
         else
         {
-            ftdi_error_return(-5, "unable to claim usb device. Make sure ftdi_sio is unloaded!");
+            ftdi_error_return(-5, "unable to claim usb device. Make sure the default FTDI driver is not in use");
         }
     }