Fix low level host mode demos not correctly fetching the next endpoint when an invali...

[pub/lufa.git] / Demos / Host / LowLevel / PrinterHost / ConfigDescriptor.c

diff --git a/Demos/Host/LowLevel/PrinterHost/ConfigDescriptor.c b/Demos/Host/LowLevel/PrinterHost/ConfigDescriptor.c
index 0591aac..b16ac66 100644 (file)
--- a/Demos/Host/LowLevel/PrinterHost/ConfigDescriptor.c
+++ b/Demos/Host/LowLevel/PrinterHost/ConfigDescriptor.c
@@ -75,8 +75,8 @@ uint8_t ProcessConfigurationDescriptor(void)
        }
 
        /* Save Printer interface details for later use */
-       PrinterInterfaceNumber = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_Interface_t).InterfaceNumber;
-       PrinterAltSetting      = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_Interface_t).AlternateSetting;
+       PrinterInterfaceNumber = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Interface_t)->InterfaceNumber;
+       PrinterAltSetting      = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Interface_t)->AlternateSetting;
 
        while (!(DataINEndpoint) || !(DataOUTEndpoint))
        {
@@ -97,8 +97,11 @@ uint8_t ProcessConfigurationDescriptor(void)
                        }
                        
                        /* Save Printer interface details for later use */
-                       PrinterInterfaceNumber = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_Interface_t).InterfaceNumber;
-                       PrinterAltSetting      = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_Interface_t).AlternateSetting;                      
+                       PrinterInterfaceNumber = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Interface_t)->InterfaceNumber;
+                       PrinterAltSetting      = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Interface_t)->AlternateSetting;                    
+
+                       /* Skip the remainder of the loop as we have not found an endpoint yet */
+                       continue;
                }
                
                /* Retrieve the endpoint address from the endpoint descriptor */
@@ -106,7 +109,7 @@ uint8_t ProcessConfigurationDescriptor(void)
 
                /* If the endpoint is a IN type endpoint */
                if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
-                 DataINEndpoint = EndpointData;
+                 DataINEndpoint  = EndpointData;
                else
                  DataOUTEndpoint = EndpointData;
        }