nrf52840 DK usbhid generic received message divided to multi packet

[AlbertNicolai]

Hi,

I'm using nrf52840 DK to connect and receive usbhid message with the message size > 64 bytes (examples 343 bytes), so the message is divided to multi packages. I modified usb_hid_generic example, but I just received 2 packages. That is some change in my code:

#define REPORT_IN_QUEUE_SIZE    63
#define REPORT_OUT_MAXSIZE  63
#define REPORT_FEATURE_MAXSIZE  31

#define ENDPOINT_LIST()                                      \
(                                                            \
        HID_GENERIC_EPIN,                                     \
        HID_GENERIC_EPOUT                                    \
)

static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                app_usbd_hid_user_event_t event);

#define USBD_GENERIC_REPORT_DESCRIPTOR { \
  0x06, 0xD0, 0xF1 , /*USAGE_PAGE (FIDO Alliance) */ \
  0x09, 0x01 , /* USAGE (U2F HID Authenticator Device) */ \
  0xa1, 0x01 , /* COLLECTION (Application) */ \
  0x09, 0x20 , /*   USAGE (Input Report Data) */ \
  0x15, 0x00 , /*   LOGICAL_MINIMUM (0) */ \
  0x26, 0xff, 0x00 , /*   LOGICAL_MAXIMUM (255) */ \
  0x75, 0x08 , /*   REPORT_SIZE (8) */ \
  0x95, 0x40 , /*   REPORT_COUNT (64) */ \
  0x81, 0x02 , /*   INPUT (Data,Var,Abs) */ \
  0x09, 0x21 , /*   USAGE(Output Report Data) */ \
  0x15, 0x00 , /*   LOGICAL_MINIMUM (0) */ \
  0x26, 0xff, 0x00 , /*   LOGICAL_MAXIMUM (255) */ \
  0x75, 0x08 , /*   REPORT_SIZE (8) */ \
  0x95, 0x40 , /*   REPORT_COUNT (64) */ \
  0x91, 0x02 , /*   OUTPUT (Data,Var,Abs) */ \
  0xc0 , /* END_COLLECTION */ \
}
APP_USBD_HID_GENERIC_SUBCLASS_REPORT_DESC(mouse_desc,USBD_GENERIC_REPORT_DESCRIPTOR);
static const app_usbd_hid_subclass_desc_t * reps[] = {&mouse_desc};
APP_USBD_HID_GENERIC_GLOBAL_DEF(m_app_hid_generic,
                                HID_GENERIC_INTERFACE,
                                hid_user_ev_handler,
                                ENDPOINT_LIST(),
                                reps,
                                REPORT_IN_QUEUE_SIZE,
                                REPORT_OUT_MAXSIZE,
                                REPORT_FEATURE_MAXSIZE,
                                APP_USBD_HID_SUBCLASS_NONE,
                                APP_USBD_HID_PROTO_GENERIC);

static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                app_usbd_hid_user_event_t event)
{
    NRF_LOG_INFO("hid_user_ev_handler %d", event);
    switch (event)
    {
        case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
        {
            NRF_LOG_INFO("APP_USBD_HID_USER_EVT_OUT_REPORT_READY");
            size_t recv_size;
            uint8_t* recv_buf;
            recv_buf = (uint8_t *)app_usbd_hid_generic_out_report_get(&m_app_hid_generic,&recv_size);
            NRF_LOG_INFO("received data length:%d", recv_size);
            NRF_LOG_HEXDUMP_INFO(recv_buf, recv_size);
            break;
        }
        case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
        {
            NRF_LOG_INFO("APP_USBD_HID_USER_EVT_IN_REPORT_DONE");
            bsp_board_led_invert(LED_HID_REP_IN);
            break;
        }
        case APP_USBD_HID_USER_EVT_SET_BOOT_PROTO:
        {
            UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
            NRF_LOG_INFO("SET_BOOT_PROTO");
            break;
        }
        case APP_USBD_HID_USER_EVT_SET_REPORT_PROTO:
        {
            UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
            NRF_LOG_INFO("SET_REPORT_PROTO");
            break;
        }
        default:
            NRF_LOG_INFO("UNDEFINDED_EVENT %d", event);
            break;
    }
}

What is problem in here?
Thanks!

[ovrebekk]

Hi

I am a bit confused by your report descriptor. It seems to set up 64 bytes of IN data and 64 bytes of OUT data, not more than that. 

Are you using a different descriptor when trying to send more than 64 bytes in one go?

When you receive two packets, how much data is there in each packet?

Best regards
Torbjørn

[AlbertNicolai]

Hi, it is main.c for test, please replace main.c in examples/peripheral/usbd_hid_generic and test with https://www.passwordless.dev/passwordless#heroFoot 

Fullscreen 8750.main.c Download

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 *
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 * 1. Redistributions of source code must retain the above copyright notice, this
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 *
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>

#include "nrf.h"
#include "app_util_platform.h"
#include "nrf_drv_usbd.h"
#include "nrf_drv_clock.h"
#include "nrf_gpio.h"
#include "nrf_drv_power.h"

#include "app_timer.h"
#include "app_usbd.h"
#include "app_usbd_core.h"
#include "app_usbd_hid_generic.h"
#include "app_usbd_hid_mouse.h"
#include "app_usbd_hid_kbd.h"
#include "app_error.h"
#include "bsp.h"

#include "bsp_cli.h"
#include "nrf_cli.h"
#include "nrf_cli_uart.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#if NRF_CLI_ENABLED
/**
 * @brief CLI interface over UART
 */
NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
NRF_CLI_DEF(m_cli_uart,
            "uart_cli:~$ ",
            &m_cli_uart_transport.transport,
            '\r',
            4);
#endif

/**
 * @brief Enable USB power detection
 */
#ifndef USBD_POWER_DETECTION
#define USBD_POWER_DETECTION true
#endif

/**
 * @brief HID generic class interface number.
 * */
#define HID_GENERIC_INTERFACE  0

/**
 * @brief HID generic class endpoint number.
 * */
#define HID_GENERIC_EPIN       NRF_DRV_USBD_EPIN1
#define HID_GENERIC_EPOUT       NRF_DRV_USBD_EPOUT1

/**
 * @brief Mouse speed (value sent via HID when board button is pressed).
 * */
#define CONFIG_MOUSE_MOVE_SPEED (3)

/**
 * @brief Mouse move repeat time in milliseconds
 */
#define CONFIG_MOUSE_MOVE_TIME_MS (5)


/* GPIO used as LED & buttons in this example */
#define LED_USB_START    (BSP_BOARD_LED_0)
#define LED_HID_REP_IN   (BSP_BOARD_LED_2)

#define BTN_MOUSE_X_POS  0
#define BTN_MOUSE_Y_POS  1
#define BTN_MOUSE_LEFT   2
#define BTN_MOUSE_RIGHT  3

/**
 * @brief Left button mask in buttons report
 */
#define HID_BTN_LEFT_MASK  (1U << 0)

/**
 * @brief Right button mask in buttons report
 */
#define HID_BTN_RIGHT_MASK (1U << 1)

/* HID report layout */
#define HID_BTN_IDX   0 /**< Button bit mask position */
#define HID_X_IDX     1 /**< X offset position */
#define HID_Y_IDX     2 /**< Y offset position */
#define HID_W_IDX     3 /**< Wheel position  */
#define HID_REP_SIZE  4 /**< The size of the report */

/**
 * @brief Number of reports defined in report descriptor.
 */
#define REPORT_IN_QUEUE_SIZE    63

/**
 * @brief Size of maximum output report. HID generic class will reserve
 *        this buffer size + 1 memory space. 
 *
 * Maximum value of this define is 63 bytes. Library automatically adds
 * one byte for report ID. This means that output report size is limited
 * to 64 bytes.
 */
#define REPORT_OUT_MAXSIZE  63

/**
 * @brief Feature report maximum size. HID generic class will reserve
 *        this buffer size + 1 memory space. 
 */
#define REPORT_FEATURE_MAXSIZE  63

/**
 * @brief HID generic class endpoints count.
 * */
#define HID_GENERIC_EP_COUNT  2

/**
 * @brief List of HID generic class endpoints.
 * */
#define ENDPOINT_LIST()                                      \
(                                                            \
        HID_GENERIC_EPIN,                                     \
        HID_GENERIC_EPOUT                                    \
)

/**
 * @brief Additional key release events
 *
 * This example needs to process release events of used buttons
 */
enum {
    BSP_USER_EVENT_RELEASE_0 = BSP_EVENT_KEY_LAST + 1, /**< Button 0 released */
    BSP_USER_EVENT_RELEASE_1,                          /**< Button 1 released */
    BSP_USER_EVENT_RELEASE_2,                          /**< Button 2 released */
    BSP_USER_EVENT_RELEASE_3,                          /**< Button 3 released */
    BSP_USER_EVENT_RELEASE_4,                          /**< Button 4 released */
    BSP_USER_EVENT_RELEASE_5,                          /**< Button 5 released */
    BSP_USER_EVENT_RELEASE_6,                          /**< Button 6 released */
    BSP_USER_EVENT_RELEASE_7,                          /**< Button 7 released */
};

/**
 * @brief HID generic mouse action types
 */
typedef enum {
    HID_GENERIC_MOUSE_X,
    HID_GENERIC_MOUSE_Y,
    HID_GENERIC_MOUSE_BTN_LEFT,
    HID_GENERIC_MOUSE_BTN_RIGHT,
} hid_generic_mouse_action_t;

#define USBD_GENERIC_REPORT_DESCRIPTOR { \
  0x06, 0xD0, 0xF1 , /*USAGE_PAGE (FIDO Alliance) */ \
  0x09, 0x01 , /* USAGE (U2F HID Authenticator Device) */ \
  0xa1, 0x01 , /* COLLECTION (Application) */ \
  0x09, 0x20 , /*   USAGE (Input Report Data) */ \
  0x15, 0x00 , /*   LOGICAL_MINIMUM (0) */ \
  0x26, 0xff, 0x00 , /*   LOGICAL_MAXIMUM (255) */ \
  0x75, 0x08 , /*   REPORT_SIZE (8) */ \
  0x95, 0x40 , /*   REPORT_COUNT (64) */ \
  0x81, 0x02 , /*   INPUT (Data,Var,Abs) */ \
  0x09, 0x21 , /*   USAGE(Output Report Data) */ \
  0x15, 0x00 , /*   LOGICAL_MINIMUM (0) */ \
  0x26, 0xff, 0x00 , /*   LOGICAL_MAXIMUM (255) */ \
  0x75, 0x08 , /*   REPORT_SIZE (8) */ \
  0x95, 0x40 , /*   REPORT_COUNT (64) */ \
  0x91, 0x02 , /*   OUTPUT (Data,Var,Abs) */ \
  0xc0 , /* END_COLLECTION */ \
}

/**
 * @brief User event handler.
 * */
static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                app_usbd_hid_user_event_t event);

/**
 * @brief Reuse HID mouse report descriptor for HID generic class
 */
APP_USBD_HID_GENERIC_SUBCLASS_REPORT_DESC(mouse_desc,USBD_GENERIC_REPORT_DESCRIPTOR);

static const app_usbd_hid_subclass_desc_t * reps[] = {&mouse_desc};

/*lint -save -e26 -e64 -e123 -e505 -e651*/

/**
 * @brief Global HID generic instance
 */
APP_USBD_HID_GENERIC_GLOBAL_DEF(m_app_hid_generic,
                                HID_GENERIC_INTERFACE,
                                hid_user_ev_handler,
                                ENDPOINT_LIST(),
                                reps,
                                REPORT_IN_QUEUE_SIZE,
                                REPORT_OUT_MAXSIZE,
                                REPORT_FEATURE_MAXSIZE,
                                APP_USBD_HID_SUBCLASS_NONE,
                                APP_USBD_HID_PROTO_GENERIC);

/*lint -restore*/


/**
 * @brief Mouse state
 *
 * Current mouse status
 */
struct
{
    int16_t acc_x;    /**< Accumulated x state */
    int16_t acc_y;    /**< Accumulated y state */
    uint8_t btn;      /**< Current btn state */
    uint8_t last_btn; /**< Last transfered button state */
}m_mouse_state;

/**
 * @brief Mark the ongoing transmission
 *
 * Marks that the report buffer is busy and cannot be used until transmission finishes
 * or invalidates (by USB reset or suspend event).
 */
static bool m_report_pending;
static bool m_report_received = false;

/**
 * @brief Timer to repeat mouse move
 */
APP_TIMER_DEF(m_mouse_move_timer);

/**
 * @brief Get maximal allowed accumulated value
 *
 * Function gets maximal value from the accumulated input.
 * @sa m_mouse_state::acc_x, m_mouse_state::acc_y
 */
static int8_t hid_acc_for_report_get(int16_t acc)
{
    if(acc > INT8_MAX)
    {
        return INT8_MAX;
    }
    else if(acc < INT8_MIN)
    {
        return INT8_MIN;
    }
    else
    {
        return (int8_t)(acc);
    }
}

/**
 * @brief Internal function that process mouse state
 *
 * This function checks current mouse state and tries to send
 * new report if required.
 * If report sending was successful it clears accumulated positions
 * and mark last button state that was transfered.
 */
static void hid_generic_mouse_process_state(void)
{
    if (m_report_pending)
        return;
    if ((m_mouse_state.acc_x != 0) ||
        (m_mouse_state.acc_y != 0) ||
        (m_mouse_state.btn != m_mouse_state.last_btn))
    {
        ret_code_t ret;
        static uint8_t report[HID_REP_SIZE];
        /* We have some status changed that we need to transfer */
        report[HID_BTN_IDX] = m_mouse_state.btn;
        report[HID_X_IDX]   = (uint8_t)hid_acc_for_report_get(m_mouse_state.acc_x);
        report[HID_Y_IDX]   = (uint8_t)hid_acc_for_report_get(m_mouse_state.acc_y);
        /* Start the transfer */
        ret = app_usbd_hid_generic_in_report_set(
            &m_app_hid_generic,
            report,
            sizeof(report));
        if (ret == NRF_SUCCESS)
        {
            m_report_pending = true;
            m_mouse_state.last_btn = report[HID_BTN_IDX];
            CRITICAL_REGION_ENTER();
            /* This part of the code can fail if interrupted by BSP keys processing.
             * Lock interrupts to be safe */
            m_mouse_state.acc_x   -= (int8_t)report[HID_X_IDX];
            m_mouse_state.acc_y   -= (int8_t)report[HID_Y_IDX];
            CRITICAL_REGION_EXIT();
        }
    }
}

/**
 * @brief HID generic IN report send handling
 * */
static void hid_generic_mouse_action(hid_generic_mouse_action_t action, int8_t param)
{
    CRITICAL_REGION_ENTER();
    /*
     * Update mouse state
     */
    switch (action)
    {
        case HID_GENERIC_MOUSE_X:
            m_mouse_state.acc_x += param;
            break;
        case HID_GENERIC_MOUSE_Y:
            m_mouse_state.acc_y += param;
            break;
        case HID_GENERIC_MOUSE_BTN_RIGHT:
            if(param == 1)
            {
                m_mouse_state.btn |= HID_BTN_RIGHT_MASK;
            }
            else
            {
                m_mouse_state.btn &= ~HID_BTN_RIGHT_MASK;
            }
            break;
        case HID_GENERIC_MOUSE_BTN_LEFT:
            if(param == 1)
            {
                m_mouse_state.btn |= HID_BTN_LEFT_MASK;
            }
            else
            {
                m_mouse_state.btn &= ~HID_BTN_LEFT_MASK;
            }
            break;
    }
    CRITICAL_REGION_EXIT();
}

/**
 * @brief Class specific event handler.
 *
 * @param p_inst    Class instance.
 * @param event     Class specific event.
 * */
static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                app_usbd_hid_user_event_t event)
{
    switch (event)
    {
        case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
        {
            /* No output report defined for this example.*/
            NRF_LOG_INFO("APP_USBD_HID_USER_EVT_OUT_REPORT_READY");
            m_report_received = true;
            size_t recv_size;
            uint8_t* recv_buf;
            recv_buf = (uint8_t *)app_usbd_hid_generic_out_report_get(&m_app_hid_generic,&recv_size);
            NRF_LOG_INFO("received data length:%d", recv_size);
            NRF_LOG_HEXDUMP_INFO(recv_buf, recv_size);
            break;
        }
        case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
        {
            bsp_board_led_invert(LED_HID_REP_IN);
            break;
        }
        case APP_USBD_HID_USER_EVT_SET_BOOT_PROTO:
        {
            UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
            NRF_LOG_INFO("SET_BOOT_PROTO");
            break;
        }
        case APP_USBD_HID_USER_EVT_SET_REPORT_PROTO:
        {
            UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
            NRF_LOG_INFO("SET_REPORT_PROTO");
            break;
        }
        default:
            break;
    }
}

/**
 * @brief USBD library specific event handler.
 *
 * @param event     USBD library event.
 * */
static void usbd_user_ev_handler(app_usbd_event_type_t event)
{
    switch (event)
    {
        case APP_USBD_EVT_DRV_SOF:
            break;
        case APP_USBD_EVT_DRV_RESET:
            m_report_pending = false;
            break;
        case APP_USBD_EVT_DRV_SUSPEND:
            m_report_pending = false;
            app_usbd_suspend_req(); // Allow the library to put the peripheral into sleep mode
            bsp_board_leds_off();
            break;
        case APP_USBD_EVT_DRV_RESUME:
            m_report_pending = false;
            bsp_board_led_on(LED_USB_START);
            break;
        case APP_USBD_EVT_STARTED:
            m_report_pending = false;
            bsp_board_led_on(LED_USB_START);
            break;
        case APP_USBD_EVT_STOPPED:
            app_usbd_disable();
            bsp_board_leds_off();
            break;
        case APP_USBD_EVT_POWER_DETECTED:
            NRF_LOG_INFO("USB power detected");
            if (!nrf_drv_usbd_is_enabled())
            {
                app_usbd_enable();
            }
            break;
        case APP_USBD_EVT_POWER_REMOVED:
            NRF_LOG_INFO("USB power removed");
            app_usbd_stop();
            break;
        case APP_USBD_EVT_POWER_READY:
            NRF_LOG_INFO("USB ready");
            app_usbd_start();
            break;
        default:
            break;
    }
}

static void mouse_move_timer_handler(void * p_context)
{
    UNUSED_PARAMETER(p_context);
    bool used = false;

    if (bsp_button_is_pressed(BTN_MOUSE_X_POS))
    {
        hid_generic_mouse_action(HID_GENERIC_MOUSE_X, CONFIG_MOUSE_MOVE_SPEED);
        used = true;
    }
    if (bsp_button_is_pressed(BTN_MOUSE_Y_POS))
    {
        hid_generic_mouse_action(HID_GENERIC_MOUSE_Y, CONFIG_MOUSE_MOVE_SPEED);
        used = true;
    }

    if(!used)
    {
        UNUSED_RETURN_VALUE(app_timer_stop(m_mouse_move_timer));
    }
}

static void bsp_event_callback(bsp_event_t ev)
{
    switch ((unsigned int)ev)
    {
        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_X_POS):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_X, CONFIG_MOUSE_MOVE_SPEED);
            UNUSED_RETURN_VALUE(app_timer_start(m_mouse_move_timer, APP_TIMER_TICKS(CONFIG_MOUSE_MOVE_TIME_MS), NULL));
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_Y_POS):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_Y, CONFIG_MOUSE_MOVE_SPEED);
            UNUSED_RETURN_VALUE(app_timer_start(m_mouse_move_timer, APP_TIMER_TICKS(CONFIG_MOUSE_MOVE_TIME_MS), NULL));
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_RIGHT):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_BTN_RIGHT, 1);
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_MOUSE_RIGHT):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_BTN_RIGHT, -1);
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_LEFT):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_BTN_LEFT, 1);
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_MOUSE_LEFT):
            hid_generic_mouse_action(HID_GENERIC_MOUSE_BTN_LEFT, -1);
            break;

        default:
            return; // no implementation needed
    }
}


/**
 * @brief Auxiliary internal macro
 *
 * Macro used only in @ref init_bsp to simplify the configuration
 */
#define INIT_BSP_ASSIGN_RELEASE_ACTION(btn)                      \
    APP_ERROR_CHECK(                                             \
        bsp_event_to_button_action_assign(                       \
            btn,                                                 \
            BSP_BUTTON_ACTION_RELEASE,                           \
            (bsp_event_t)CONCAT_2(BSP_USER_EVENT_RELEASE_, btn)) \
    )

static void init_bsp(void)
{
    ret_code_t ret;
    ret = bsp_init(BSP_INIT_BUTTONS, bsp_event_callback);
    APP_ERROR_CHECK(ret);

    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_MOUSE_LEFT );
    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_MOUSE_RIGHT);

    /* Configure LEDs */
    bsp_board_init(BSP_INIT_LEDS);
}

#if NRF_CLI_ENABLED
static void init_cli(void)
{
    ret_code_t ret;
    ret = bsp_cli_init(bsp_event_callback);
    APP_ERROR_CHECK(ret);
    nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
    uart_config.pseltxd = TX_PIN_NUMBER;
    uart_config.pselrxd = RX_PIN_NUMBER;
    uart_config.hwfc    = NRF_UART_HWFC_DISABLED;
    ret = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
    APP_ERROR_CHECK(ret);
    ret = nrf_cli_start(&m_cli_uart);
    APP_ERROR_CHECK(ret);
}
#endif

static ret_code_t idle_handle(app_usbd_class_inst_t const * p_inst, uint8_t report_id)
{
    switch (report_id)
    {
        case 0:
        {
            uint8_t report[] = {0xBE, 0xEF};
            return app_usbd_hid_generic_idle_report_set(
              &m_app_hid_generic,
              report,
              sizeof(report));
        }
        default:
            return NRF_ERROR_NOT_SUPPORTED;
    }
    
}

void send_pkt(uint8_t * msg){
    ret_code_t ret;
    while (app_usbd_event_queue_process())
    {
        /* Nothing to do */
    }

    NRF_LOG_INFO("send_pkt");
    NRF_LOG_HEXDUMP_INFO(msg, 64);
    ret = app_usbd_hid_generic_in_report_set(
        &m_app_hid_generic,
        (uint8_t *)msg,
        64);

    if(ret == NRF_SUCCESS)
    {
        //NRF_LOG_INFO("send success");
    }
}

static void test_process(){
    size_t recv_size;
    uint8_t* recv_buf;
    uint8_t tx_buff[64];
    memset(tx_buff, 0, 64);
    m_report_received = false;
    recv_buf = (uint8_t *)app_usbd_hid_generic_out_report_get(&m_app_hid_generic,&recv_size);

    if (recv_buf[0] == 0xff){
        memcpy(tx_buff, recv_buf, 22);
        tx_buff[6] = 0x11;
        tx_buff[15] = 0x02;
        tx_buff[19] = 0x02;
        tx_buff[23] = 0x05;
        send_pkt(tx_buff);
    } else if (recv_buf[4]==0x90 && recv_buf[7]==0x04){
        uint8_t packet1[64] = {0x02,0x00,0x00,0x00,0x90,0x00,0x56,0x00,0xA6,0x01,0x82,0x66,0x55,0x32,0x46,0x5F,0x56,0x32,0x68,0x46,0x49,0x44,0x4F,0x5F,0x32,0x5F,0x30,0x02,0x81,0x6B,0x68,0x6D,0x61,0x63,0x2D,0x73,0x65,0x63,0x72,0x65,0x74,0x03,0x50,0x88,0x76,0x63,0x1B,0xD4,0xA0,0x42,0x7F,0x57,0x73,0x0E,0xC7,0x1C,0x9E,0x02,0x79,0x04,0xA4,0x62,0x72,0x6B};
        send_pkt(packet1);
        uint8_t packet2[64] = {0x02,0x00,0x00,0x00,0x00,0xF5,0x62,0x75,0x70,0xF5,0x64,0x70,0x6C,0x61,0x74,0xF4,0x69,0x63,0x6C,0x69,0x65,0x6E,0x74,0x50,0x69,0x6E,0xF4,0x05,0x19,0x04,0xB0,0x06,0x81,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
        send_pkt(packet2);
    }
}

int main(void)
{
    ret_code_t ret;
    static const app_usbd_config_t usbd_config = {
        .ev_state_proc = usbd_user_ev_handler
    };

    ret = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(ret);

    ret = nrf_drv_clock_init();
    APP_ERROR_CHECK(ret);

    nrf_drv_clock_lfclk_request(NULL);

    while(!nrf_drv_clock_lfclk_is_running())
    {
        /* Just waiting */
    }

    ret = app_timer_init();
    APP_ERROR_CHECK(ret);

    ret = app_timer_create(&m_mouse_move_timer, APP_TIMER_MODE_REPEATED, mouse_move_timer_handler);
    APP_ERROR_CHECK(ret);

    init_bsp();
#if NRF_CLI_ENABLED
    init_cli();
#endif
    NRF_LOG_INFO("Hello USB!");

    ret = app_usbd_init(&usbd_config);
    APP_ERROR_CHECK(ret);

    NRF_LOG_INFO("USBD HID generic example started.");

    app_usbd_class_inst_t const * class_inst_generic;
    class_inst_generic = app_usbd_hid_generic_class_inst_get(&m_app_hid_generic);

    ret = hid_generic_idle_handler_set(class_inst_generic, idle_handle);
    APP_ERROR_CHECK(ret);

    ret = app_usbd_class_append(class_inst_generic);
    APP_ERROR_CHECK(ret);

    if (USBD_POWER_DETECTION)
    {
        ret = app_usbd_power_events_enable();
        APP_ERROR_CHECK(ret);
    }
    else
    {
        NRF_LOG_INFO("No USB power detection enabled\r\nStarting USB now");

        app_usbd_enable();
        app_usbd_start();
    }

    while (true)
    {
        while (app_usbd_event_queue_process())
        {
            /* Nothing to do */
        }
        //hid_generic_mouse_process_state();
        if(m_report_received) test_process();
#if NRF_CLI_ENABLED
        nrf_cli_process(&m_cli_uart);
#endif

        UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
        /* Sleep CPU only if there was no interrupt since last loop processing */
        __WFE();
    }
}

[AlbertNicolai]

Hi, I tried to increase the REPORT_COUNT field but after that I can't received anything while if it is 64, I can receive packet <= 64 bytes

[ovrebekk]

Hi

I will need some help from the developers to investigate this. I can't promise a schedule yet unfortunately, but I will try to provide an update next week. 

Best regards
Torbjørn

[AlbertNicolai]

Thank you, if you need anything to investigate this, I will provide for you. 

Best regards,

Nicolai

[ovrebekk]

Hi Nicolai

It would be interesting to know how you are interfacing to the HID device from the host side?

Are you writing some custom software for Windows/Linux to access the HID device, or using some off the shelf test software?

Best regards
Torbjørn

[AlbertNicolai]

Hi

I modify main.c in example usb_hid_generic, test it with macOS 10.14.6, Google Chrome Version 80.0.3987.116 (Official Build) (64-bit). Please test with link https://www.passwordless.dev/passwordless#heroFoot 

Best regards

Nicolai

[ovrebekk]

Hi Albert

Thanks for the added information. 

Just a quick update to let you know you're not forgotten. The developers will try to reproduce the issue this week, so I hope to have some news for you soon. 

Best regards
Torbjørn

[ovrebekk]

Hi again

They tried to reproduce the issue, but they were not able to get your web service to work. Instead they used the modified code to run the test:

The code feeds 512 Bytes into the USB stack EP1 through app_usbd_hid_generic_in_report_set(xxx, 512) in function send_pkt().

What they see on the receiving side is that the buffer gets subdivided into 8 packets and they all get transferred.

They end up with the following conclusion:

They cannot reproduce the issue with their setup, but in general USB stack seems to be capable of transferring big reports.

They need some input from you to investigate this further: 

• can you isolate the issue so that the Chrome is not needed?;
• can you check and let us know how many IN frames you provide between OUT frames to convey the report (you need at least 6 IN packets to convey the message)?

Best regards
Torbjørn