X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/e635872612fb054791a121a2920432574b9245bb..646e63b08944daf0ece6b784eae18cf162601682:/Bootloaders/Printer/BootloaderPrinter.c

diff --git a/Bootloaders/Printer/BootloaderPrinter.c b/Bootloaders/Printer/BootloaderPrinter.c
index 0e1fbba42..c459e031a 100644
--- a/Bootloaders/Printer/BootloaderPrinter.c
+++ b/Bootloaders/Printer/BootloaderPrinter.c
@@ -80,7 +80,7 @@ static bool PageDirty = false;
  *
  * \param[in] Byte  ASCII byte of data to check
  *
- * \return Boolean \c true if the input data is ASCII encoded HEX, false otherwise.
+ * \return Boolean \c true if the input data is ASCII encoded HEX, \c false otherwise.
  */
 static bool IsHex(const char Byte)
 {
@@ -380,6 +380,13 @@ void EVENT_USB_Device_ControlRequest(void)
 					"CLS:PRINTER";
 
 				Endpoint_ClearSETUP();
+
+				while (!(Endpoint_IsINReady()))
+				{
+					if (USB_DeviceState == DEVICE_STATE_Unattached)
+					  return;
+				}
+
 				Endpoint_Write_16_BE(sizeof(PrinterIDString));
 				Endpoint_Write_Control_Stream_LE(PrinterIDString, strlen(PrinterIDString));
 				Endpoint_ClearStatusStage();
@@ -390,6 +397,13 @@ void EVENT_USB_Device_ControlRequest(void)
 			if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
 			{
 				Endpoint_ClearSETUP();
+
+				while (!(Endpoint_IsINReady()))
+				{
+					if (USB_DeviceState == DEVICE_STATE_Unattached)
+					  return;
+				}
+
 				Endpoint_Write_8(PRNT_PORTSTATUS_NOTERROR | PRNT_PORTSTATUS_SELECT);
 				Endpoint_ClearStatusStage();
 			}