Ticket #42: libusb-compat-usb_detach_kernel_driver_np-error.patch

libusb/core.c

@@ -912 +912 @@
 
 API_EXPORTED int usb_detach_kernel_driver_np(usb_dev_handle *dev, int interface)
 {
-        return compat_err(libusb_detach_kernel_driver(dev->handle, interface));
+        int r = compat_err(libusb_detach_kernel_driver(dev->handle, interface));
+        if (r == 0) {
+                return 0;
+        } else {
+                switch (r) {
+                case LIBUSB_ERROR_NOT_FOUND:
+                        return ENODATA;
+                case LIBUSB_ERROR_INVALID_PARAM:
+                        return EINVAL;
+                case LIBUSB_ERROR_NO_DEVICE:
+                        return ENODEV;
+                case LIBUSB_ERROR_OTHER:
+                        return errno;
+                default:
+                        return ERANGE;
+                }
+        }
 }