Custom hid input report descriptor

[MHovi.1]

Hi folks,

I have a stm32f411 with custom hid running smoothly. But if i change a value in the report descriptor data transmission stops working.

I want to change the descriptor cause i want to send more data to the host.

Here is the descriptor which works

char ReportDescriptor[58] = {
 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
 0x09, 0x04, // USAGE (Joystick)
 0xa1, 0x01, // COLLECTION (Application)
 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
 0x09, 0x30, // USAGE (X)
 0x09, 0x31, // USAGE (Y)
 0x15, 0x00, // LOGICAL_MINIMUM (0)
 0x27, 0xff, 0xff, 0x00, 0x00, // LOGICAL_MAXIMUM (65535)
 0x75, 0x10, // REPORT_SIZE (16)
 0x95, 0x02, // REPORT_COUNT (2)
 0x81, 0x02, // INPUT (Data,Var,Abs)
 0x05, 0x09, // USAGE_PAGE (Button)
 0x19, 0x01, // USAGE_MINIMUM (Button 1)
 0x29, 0x20, // USAGE_MAXIMUM (Button 32)
 0x15, 0x00, // LOGICAL_MINIMUM (0)
 0x25, 0x01, // LOGICAL_MAXIMUM (1)
 0x75, 0x01, // REPORT_SIZE (1)
 0x95, 0x20, // REPORT_COUNT (32)
 0x81, 0x02, // INPUT (Data,Var,Abs)
 0x09, 0x00, // USAGE (Undefined)
 0x75, 0x08, // REPORT_SIZE (8)
 0x95, 0x14, // REPORT_COUNT (20)
 0x81, 0x02, // INPUT (Data,Var,Abs)
 0x09, 0x00, // USAGE (Undefined)
 0x75, 0x08, // REPORT_SIZE (8)
 0x95, 0x40, // REPORT_COUNT (64)
 0x91, 0x02, // OUTPUT (Data,Var,Abs)
 0xc0 // END_COLLECTION

Using the USB demo tool tells me the input report byte length is 29

Now i want to crank this to the maximum which according to my knowledge is 64 bytes.

If i change the report count in the following line to 35 that should make a input report byte length of 64 in total.

0x09, 0x00,          //  USAGE (Undefined)

  0x75, 0x08,          //  REPORT_SIZE (8)

  0x95, 0x14,          //  REPORT_COUNT (20)

  0x81, 0x02,          //  INPUT (Data,Var,Abs)

Unfortunately a report count of 35 hangs the data transmission.

I sure can need some advice on what i am doing wrong or where it goes wrong.

Thanks in advance

Martijn

[MHovi.1]

Here some related additional info,

usbd_conf.h

/*---------- -----------*/
#define USBD_MAX_NUM_INTERFACES 1U
/*---------- -----------*/
#define USBD_MAX_NUM_CONFIGURATION 1U
/*---------- -----------*/
#define USBD_MAX_STR_DESC_SIZ 512U
/*---------- -----------*/
#define USBD_DEBUG_LEVEL 0U
/*---------- -----------*/
#define USBD_LPM_ENABLED 0U
/*---------- -----------*/
#define USBD_SELF_POWERED 1U
/*---------- -----------*/
#define USBD_CUSTOMHID_OUTREPORT_BUF_SIZE 64U
/*---------- -----------*/
#define USBD_CUSTOM_HID_REPORT_DESC_SIZE 58U
/*---------- -----------*/
#define CUSTOM_HID_FS_BINTERVAL 0x01U//0x5U
 
/****************************************/
/* #define for FS and HS identification */
#define DEVICE_FS 		0
#define DEVICE_HS 		1

and the usbd_customhid.h

#define CUSTOM_HID_EPIN_ADDR 0x81U
 
#ifndef CUSTOM_HID_EPIN_SIZE
#define CUSTOM_HID_EPIN_SIZE 0x40U
#endif
 
#define CUSTOM_HID_EPOUT_ADDR 0x01U
 
#ifndef CUSTOM_HID_EPOUT_SIZE
#define CUSTOM_HID_EPOUT_SIZE 0x40U
#endif
 
#define USB_CUSTOM_HID_CONFIG_DESC_SIZ 41U
#define USB_CUSTOM_HID_DESC_SIZ 9U
 
#ifndef CUSTOM_HID_HS_BINTERVAL
#define CUSTOM_HID_HS_BINTERVAL 0x05U
#endif /* CUSTOM_HID_HS_BINTERVAL */
 
#ifndef CUSTOM_HID_FS_BINTERVAL
#define CUSTOM_HID_FS_BINTERVAL 0x01U
#endif /* CUSTOM_HID_FS_BINTERVAL */
 
#ifndef USBD_CUSTOMHID_OUTREPORT_BUF_SIZE
#define USBD_CUSTOMHID_OUTREPORT_BUF_SIZE 0x40U
#endif /* USBD_CUSTOMHID_OUTREPORT_BUF_SIZE */
 
#ifndef USBD_CUSTOM_HID_REPORT_DESC_SIZE
#define USBD_CUSTOM_HID_REPORT_DESC_SIZE 58
U
#endif /* USBD_CUSTOM_HID_REPORT_DESC_SIZE */
 
#define CUSTOM_HID_DESCRIPTOR_TYPE 0x21U
#define CUSTOM_HID_REPORT_DESC 0x22U
 
#define CUSTOM_HID_REQ_SET_PROTOCOL 0x0BU
#define CUSTOM_HID_REQ_GET_PROTOCOL 0x03U
 
#define CUSTOM_HID_REQ_SET_IDLE 0x0AU
#define CUSTOM_HID_REQ_GET_IDLE 0x02U
 
#define CUSTOM_HID_REQ_SET_REPORT 0x09U
#define CUSTOM_HID_REQ_GET_REPORT 0x01U