Change Host mode class driver Pipe configuration routines -- better to let the applic...

[pub/lufa.git] / Demos / Host / ClassDriver / CDCHost / CDCHost.c

diff --git a/Demos/Host/ClassDriver/CDCHost/CDCHost.c b/Demos/Host/ClassDriver/CDCHost/CDCHost.c
index 4479e4f..b74c394 100644 (file)
--- a/Demos/Host/ClassDriver/CDCHost/CDCHost.c
+++ b/Demos/Host/ClassDriver/CDCHost/CDCHost.c
@@ -74,10 +74,31 @@ int main(void)
                        case HOST_STATE_Addressed:\r
                                LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
                        \r
-                               if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface, 512) != CDC_ENUMERROR_NoError)\r
+                               uint16_t ConfigDescriptorSize;\r
+                               uint8_t  ConfigDescriptorData[512];\r
+\r
+                               if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)\r
                                {\r
-                                       printf("Attached device is not a valid CDC device.\r\n");\r
+                                       printf("Error Retrieving Device Descriptor.\r\n");\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
                                \r
+                               if (ConfigDescriptorSize > 512)\r
+                               {\r
+                                       printf("Device Descriptor Too Large To Process.\r\n");\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+                                 \r
+                               USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);\r
+\r
+                               if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface,\r
+                                                           ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError)\r
+                               {\r
+                                       printf("Attached Device Not a Valid CDC Class Device.\r\n");\r
                                        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
                                        USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
                                        break;\r
@@ -86,12 +107,11 @@ int main(void)
                                if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)\r
                                {\r
                                        printf("Error Setting Device Configuration.\r\n");\r
-\r
                                        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
                                        USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
                                        break;\r
                                }\r
-\r
+                               \r
                                printf("CDC Device Enumerated.\r\n");\r
                                USB_HostState = HOST_STATE_Configured;\r
                                break;\r