X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/blobdiff_plain/6262005e88c7c9edff4c0f962ca338ffb2a299fb..3435bdb66e2ea9d3f2be157702b2d116cc45a25f:/hmcfgusb.c

diff --git a/hmcfgusb.c b/hmcfgusb.c
index 825b313..d8a442f 100644
--- a/hmcfgusb.c
+++ b/hmcfgusb.c
@@ -146,8 +146,11 @@ int hmcfgusb_send_null_frame(struct hmcfgusb_dev *usbdev, int silent)
 {
 	int err;
 	int cnt;
+	unsigned char out[0x40];
 
-	err = libusb_interrupt_transfer(usbdev->usb_devh, EP_OUT, NULL, 0, &cnt, USB_TIMEOUT);
+	memset(out, 0, sizeof(out));
+
+	err = libusb_interrupt_transfer(usbdev->usb_devh, EP_OUT, out, sizeof(out), &cnt, USB_TIMEOUT);
 	if (err && (!silent)) {
 		fprintf(stderr, "Can't send null frame: %s\n", usb_strerror(err));
 		return 0;
@@ -242,7 +245,7 @@ static void LIBUSB_CALL hmcfgusb_interrupt(struct libusb_transfer *transfer)
 
 	if (transfer->status != LIBUSB_TRANSFER_COMPLETED) {
 		if (transfer->status != LIBUSB_TRANSFER_TIMED_OUT) {
-			fprintf(stderr, "Interrupt transfer not completed: %d!\n", transfer->status);
+			fprintf(stderr, "Interrupt transfer not completed: %s!\n", usb_strerror(transfer->status));
 			quit = EIO;
 
 			if (cb_data && cb_data->dev && cb_data->dev->transfer) {