do not report errors when sending of the wakeup-frame fails

[hmcfgusb] / hmcfgusb.c

diff --git a/hmcfgusb.c b/hmcfgusb.c
index 05f16bed4f10a1b2284b2a98b230cca0896b5da7..825b3132a3bbc660d37ef6a41259fbc7b785d6e7 100644 (file)
--- a/hmcfgusb.c
+++ b/hmcfgusb.c
@@ -142,14 +142,14 @@ static libusb_device_handle *hmcfgusb_find() {
        return NULL;
 }
 
-int hmcfgusb_send_null_frame(struct hmcfgusb_dev *usbdev)
+int hmcfgusb_send_null_frame(struct hmcfgusb_dev *usbdev, int silent)
 {
        int err;
        int cnt;
 
        err = libusb_interrupt_transfer(usbdev->usb_devh, EP_OUT, NULL, 0, &cnt, USB_TIMEOUT);
-       if (err) {
-               fprintf(stderr, "Can't send data: %s\n", usb_strerror(err));
+       if (err && (!silent)) {
+               fprintf(stderr, "Can't send null frame: %s\n", usb_strerror(err));
                return 0;
        }
 
@@ -176,7 +176,7 @@ int hmcfgusb_send(struct hmcfgusb_dev *usbdev, unsigned char* send_data, int len
        }
 
        if (done) {
-               if (!hmcfgusb_send_null_frame(usbdev)) {
+               if (!hmcfgusb_send_null_frame(usbdev, 0)) {
                        return 0;
                }
        }