libusb1_common, ftdi: clarify libusb_open error message

[openocd.git] / src / jtag / drivers / libusb1_common.c

diff --git a/src/jtag/drivers/libusb1_common.c b/src/jtag/drivers/libusb1_common.c
index 888420ac2ab3690f7c3e704f3fd8c3f4075a838f..c4478cb9b1ac99b863b91df87b2e9d017699a73c 100644 (file)
--- a/src/jtag/drivers/libusb1_common.c
+++ b/src/jtag/drivers/libusb1_common.c
@@ -16,7 +16,7 @@
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -62,8 +62,11 @@ int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
                /** Free the device list **/
                libusb_free_device_list(devs, 1);
 
-               if (errCode < 0)
+               if (errCode) {
+                       LOG_ERROR("libusb_open() failed with %s",
+                                 libusb_error_name(errCode));
                        return errCode;
+               }
                return 0;
        }
        return -ENODEV;