From: Dean Camera <dean@fourwalledcubicle.com>
Date: Mon, 15 Jun 2020 12:02:06 +0000 (+1000)
Subject: Fix control request hang in Printer device class driver (thanks to Juergen Borleis).
X-Git-Tag: LUFA-210130~7
X-Git-Url: http://git.linex4red.de/pub/USBasp.git/commitdiff_plain/79780cea57fd5c742e24d4a982417c2a065e662f

Fix control request hang in Printer device class driver (thanks to Juergen Borleis).
---

diff --git a/LUFA/DoxygenPages/ChangeLog.txt b/LUFA/DoxygenPages/ChangeLog.txt
index a84ca3d57..557587b21 100644
--- a/LUFA/DoxygenPages/ChangeLog.txt
+++ b/LUFA/DoxygenPages/ChangeLog.txt
@@ -34,6 +34,7 @@
   *   - Fixed USB_STRING_DESCRIPTOR_ARRAY() not accepting more than two byte long arrays
   *   - Fixed HID report parser corruption when parsing PUSH and POP report item elements
   *   - Fixed HID report parser incorrectly decoding 32-bit USAGE elements
+  *   - Fixed control request hangs in the Printer device class driver (thanks to Juergen Borleis)
   *  - Library Applications:
   *   - Fixed bootloaders not disabling global interrupts during erase and write operations (thanks to Zoltan)
   *   - Fixed bootloaders accepting flash writes to the bootloader region (thanks to NicoHood)
diff --git a/LUFA/Drivers/USB/Class/Device/PrinterClassDevice.c b/LUFA/Drivers/USB/Class/Device/PrinterClassDevice.c
index d6cd09516..940aacf13 100644
--- a/LUFA/Drivers/USB/Class/Device/PrinterClassDevice.c
+++ b/LUFA/Drivers/USB/Class/Device/PrinterClassDevice.c
@@ -77,6 +77,8 @@ void PRNT_Device_ProcessControlRequest(USB_ClassInfo_PRNT_Device_t* const PRNTIn
 				}
 
 				Endpoint_Write_8(PRNTInterfaceInfo->State.PortStatus);
+				Endpoint_ClearIN();
+
 				Endpoint_ClearStatusStage();
 			}