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-rw-r--r--tools/dfu.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/dfu.h b/tools/dfu.h
index 1a253505..915efd8c 100644
--- a/tools/dfu.h
+++ b/tools/dfu.h
@@ -100,8 +100,8 @@ struct dfu_suffix {
/* DFU interface */
int dfu_detach(struct usb_dev_handle *udev, int intf);
-int dfu_upload(struct usb_dev_handle *udev, int intf, int block, unsigned char *buffer, int size);
-int dfu_download(struct usb_dev_handle *udev, int intf, int block, unsigned char *buffer, int size);
+int dfu_upload(struct usb_dev_handle *udev, int intf, int block, char *buffer, int size);
+int dfu_download(struct usb_dev_handle *udev, int intf, int block, char *buffer, int size);
int dfu_get_status(struct usb_dev_handle *udev, int intf, struct dfu_status *status);
int dfu_clear_status(struct usb_dev_handle *udev, int intf);
int dfu_get_state(struct usb_dev_handle *udev, int intf, uint8_t *state);