Fixed the ClassDriver GenericHID demo so that it echoes back reports as indicated in the demo overview.

3 files changed, 20 insertions, 7 deletions

diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
index 9db30cebf..323d69336 100644
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.c
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
@@ -39,6 +39,14 @@
 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */

 uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];

 

+/** Structure to contain reports from the host, so that they can be echoed back upon request */

+struct

+{

+	uint8_t ReportID;

+	uint16_t ReportSize;

+	uint8_t ReportData[GENERIC_REPORT_SIZE];

+} HIDReportEcho;

+

 /** LUFA HID Class driver interface configuration and state information. This structure is

  *  passed to all HID Class driver functions, so that multiple instances of the same class

  *  within a device can be differentiated from one another.

@@ -139,9 +147,12 @@ ISR(TIMER0_COMPA_vect, ISR_BLOCK)
 bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,

                                          void* ReportData, uint16_t* ReportSize)

 {

-	// Create generic HID report here

+	if (HIDReportEcho.ReportID)

+	  *ReportID = HIDReportEcho.ReportID;

+

+	memcpy(ReportData, HIDReportEcho.ReportData, HIDReportEcho.ReportSize);

 	

-	*ReportSize = 0;

+	*ReportSize = HIDReportEcho.ReportSize;

 	return true;

 }

 

@@ -155,5 +166,7 @@ bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDIn
 void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,

                                           const void* ReportData, const uint16_t ReportSize)

 {

-	// Process received generic HID report here

+	HIDReportEcho.ReportID   = ReportID;

+	HIDReportEcho.ReportSize = ReportSize;

+	memcpy(HIDReportEcho.ReportData, ReportData, ReportSize);

 }

diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.txt b/Demos/Device/ClassDriver/GenericHID/GenericHID.txt
index fc5c136a2..226b007cf 100644
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.txt
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.txt
@@ -51,8 +51,8 @@
  *

  *  Generic HID device demonstration application. This gives a simple reference application

  *  for implementing a generic HID device, using the basic USB HID drivers in all modern

- *  OSes (i.e. no special drivers required). It accepts and sends up to 255 byte reports to

- *  and from a USB Host, and by default transmits the last sent report back to the host.

+ *  OSes (i.e. no special drivers required). By default it accepts and sends up to 8 byte reports

+ *  to and from a USB Host, and transmits the last sent report back to the host.

  *  

  *  On start-up the system will automatically enumerate and function as a vendor HID device.

  *  When controlled by a custom HID class application, reports can be sent and received by

diff --git a/Demos/Device/LowLevel/GenericHID/GenericHID.txt b/Demos/Device/LowLevel/GenericHID/GenericHID.txt
index fc5c136a2..226b007cf 100644
--- a/Demos/Device/LowLevel/GenericHID/GenericHID.txt
+++ b/Demos/Device/LowLevel/GenericHID/GenericHID.txt
@@ -51,8 +51,8 @@
  *

  *  Generic HID device demonstration application. This gives a simple reference application

  *  for implementing a generic HID device, using the basic USB HID drivers in all modern

- *  OSes (i.e. no special drivers required). It accepts and sends up to 255 byte reports to

- *  and from a USB Host, and by default transmits the last sent report back to the host.

+ *  OSes (i.e. no special drivers required). By default it accepts and sends up to 8 byte reports

+ *  to and from a USB Host, and transmits the last sent report back to the host.

  *  

  *  On start-up the system will automatically enumerate and function as a vendor HID device.

  *  When controlled by a custom HID class application, reports can be sent and received by