diff options
Diffstat (limited to 'Demos/Device/ClassDriver/GenericHID/GenericHID.c')
| -rw-r--r-- | Demos/Device/ClassDriver/GenericHID/GenericHID.c | 19 |
1 files changed, 16 insertions, 3 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);
}
|