writeReport for UHS_HID_raw

[ColtB45]

I am looking for an example of how to leverage writeReport. Specifically, I'm trying to send a query string which should illicit a response with the requested information. It doesn't appear to send the query string out though;

d->writeReport(uint16_t(sizeof(upsquery1))-1, uint8_t(upsquery1));

I assume I'm doing something wrong and seeking a functional example(s) of writeReport.

The sketch I'm working with is below.

// Load the USB Host System core
#define LOAD_USB_HOST_SYSTEM
// Load USB Host Shield
//#define LOAD_USB_HOST_SHIELD
// Use USB hub, you might want this for multiple devices.
//#define LOAD_UHS_HUB

// Patch printf so we can use it.
#define LOAD_UHS_PRINTF_HELPER
#define DEBUG_PRINTF_EXTRA_HUGE 0
#define DEBUG_PRINTF_EXTRA_HUGE_USB_HID 1

#define LOAD_UHS_HID

#include <Arduino.h>
#ifdef true
#undef true
#endif
#ifdef false
#undef false
#endif

#define LOAD_UHS_KINETIS_FS_HOST

#define USB_HOST_SERIAL Serial2

#define ENABLE_UHS_DEBUGGING 1
#define DEBUG_PRINTF_EXTRA_HUGE 1
#define DEBUG_PRINTF_EXTRA_HUGE_UHS_HOST 1
#define DEBUG_PRINTF_EXTRA_HUGE_USB_HOST_KINETIS 1

#include <UHS_host.h>

const uint8_t upsquery1[] = {0x00, 0x01, 0x02, 0x03};

int ii = 0;

class myHID_processor : public UHS_HID_PROCESSOR {
public:
        myHID_processor(void) {}

        void onRelease(UHS_HID_base *d) {
                printf_P(PSTR("HID driver type %d no longer available.\r\n"), d->driver);
        }
        void onStart(UHS_HID_base *d) {
                printf_P(PSTR("HID driver type %d started, Subclass %02x, Protocol %02x\r\n"), d->driver, d->parent->bSubClass, d->parent->bProtocol);
        }
        void onPoll(UHS_HID_base *d, uint8_t *data, uint16_t length) {
                switch(d->driver) {
                        case UHS_HID_raw:
                                printf_P(PSTR("\r\n"));
                                printf_P(PSTR("RAW input %d bytes Data:"), length);
                                for(int i=0; i < length; i++) {
                                        printf_P(PSTR(" %02x"), data[i]);
                                }
                                printf_P(PSTR("\r\n"));
                                ii++;
                                if (ii>2){
                                    d->writeReport(uint16_t(sizeof(upsquery1))-1, uint8_t(upsquery1));
                                    printf_P(PSTR("RAW output %d bytes Data:"), sizeof(sendsend));
                                    for(int i=0; i < sizeof(sendsend); i++) {
                                            printf_P(PSTR(" %02x"), sendsend[i]);
                                    }
                                    printf_P(PSTR("\r\n"));
                                    ii=0;
                                  }
                                break;
                        default:
                                break;
                }
        }
};

myHID_processor HID_processor1;
UHS_KINETIS_FS_HOST UHS_Usb;
UHS_HID hid1(&UHS_Usb, &HID_processor1);

void setup() {
        USB_HOST_SERIAL.begin(115200);
        while(UHS_Usb.Init(1000) != 0);
        printf_P(PSTR("\r\nHID RAW demo Begin.\r\n"));
}

void loop() {
        delay(1);
}