typedef struct
{ // FFB: Set Effect Output Report
uint8_t reportId; // =1
uint8_t effectBlockIndex; // 1..40
uint8_t effectType; // 1..12 (effect usages: 26,27,30,31,32,33,34,40,41,42,43,28) //milos, total 11, 28 is removed (custom force)
uint16_t duration; // 0..65535, exp -3, s
uint16_t triggerRepeatInterval; // 0..65535, exp -3, s //milos
int16_t gain; // 0..32767 (physical 0..32767) //milos, was 0(0)..(255)10000, uint8_t
uint8_t triggerButton; // button ID (0..8)
uint8_t enableAxis; // bits: 0=X, 1=Y, 2=DirectionEnable
uint16_t direction; // angle (0=0 .. 65535=35999, exp -2, deg) //milos, 16bit
uint16_t startDelay; // 0..65535, exp -3, s //milos, uncommented
} USB_FFBReport_SetEffect_Output_Data_t;

here is PID part of the HID descriptor responsible for managing constant force effect

0x09, 0x73, // USAGE (Set Constant Force Report)
0xA1, 0x02, // COLLECTION (Logical)
0x85, 0x05, // REPORT_ID (05)
0x09, 0x22, // USAGE (Effect Block Index)
0x15, 0x01, // LOGICAL_MINIMUM (01)
0x25, 0x28, // LOGICAL_MAXIMUM (40)
0x35, 0x01, // PHYSICAL_MINIMUM (01)
0x45, 0x28, // PHYSICAL_MAXIMUM (40)
0x75, 0x08, // REPORT_SIZE (08)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x09, 0x70, // USAGE (Magnitude)
0x16, 0x01, 0x80, // LOGICAL_MINIMUM (-32767) //milos, my original
0x26, 0xFF, 0x7F, // LOGICAL_MAXIMUM (32767) //milos, my original
0x36, 0x01, 0x80, // PHYSICAL_MINIMUM (-32767) //milos, my original
0x46, 0xFF, 0x7F, // PHYSICAL_MAXIMUM (32767) //milos, my original
0x75, 0x10, // REPORT_SIZE (16)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xC0, // END COLLECTION ()

here is PID part of the HID descriptor responsible for managing set effect report

0x09, 0x21, // USAGE (Set Effect Output Report)
0xA1, 0x02, // COLLECTION (Logical)
0x85, 0x01, // REPORT_ID (01)
0x09, 0x22, // USAGE (Effect Block Index)
0x15, 0x01, // LOGICAL_MINIMUM (01)
0x25, 0x28, // LOGICAL_MAXIMUM (40)
0x35, 0x01, // PHYSICAL_MINIMUM (01)
0x45, 0x28, // PHYSICAL_MAXIMUM (40)
0x75, 0x08, // REPORT_SIZE (08)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x09, 0x25, // USAGE (Effect type)
0xA1, 0x02, // COLLECTION (Logical)
0x09, 0x26, // USAGE (ET Constant Force)
0x09, 0x27, // USAGE (ET Ramp)
0x09, 0x30, // USAGE (ET Square)
0x09, 0x31, // USAGE (ET Sine)
0x09, 0x32, // USAGE (ET Triangle)
0x09, 0x33, // USAGE (ET Sawtooth Up)
0x09, 0x34, // USAGE (ET Sawtooth Down)
0x09, 0x40, // USAGE (ET Spring)
0x09, 0x41, // USAGE (ET Damper)
0x09, 0x42, // USAGE (ET Inertia)
0x09, 0x43, // USAGE (ET Friction)
//0x09, 0x28, // USAGE (ET Custom Force Data) //milos, removed custom force effect block
//0x25, 0x0C, // LOGICAL_MAXIMUM (12)
0x25, 0x0B, // LOGICAL_MAXIMUM (11) //milos, 1 less effect
0x15, 0x01, // LOGICAL_MINIMUM (01)
0x35, 0x01, // PHYSICAL_MINIMUM (01)
//0x45, 0x0C, // PHYSICAL_MAXIMUM (12)
0x45, 0x0B, // PHYSICAL_MAXIMUM (11) //milos, 1 less effect
0x75, 0x08, // REPORT_SIZE (08)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x00, // OUTPUT (Data)
0xC0, // END COLLECTION ()
0x09, 0x50, // USAGE (Duration)
0x09, 0x54, // USAGE (Trigger Repeat Interval)
//0x09, 0x51, // USAGE (Sample Period) //milos, commented
0x15, 0x00, // LOGICAL_MINIMUM (00)
0x27, 0xFF, 0xFF, 0x00, 0x00, // LOGICAL_MAXIMUM (65535)
0x35, 0x00, // PHYSICAL_MINIMUM (00)
0x47, 0xFF, 0xFF, 0x00, 0x00, // PHYSICAL_MAXIMUM (65535)
0x66, 0x01, 0x10, // UNIT (SI Lin:Time)
0x55, 0xFD, // UNIT_EXPONENT (-3)
0x75, 0x10, // REPORT_SIZE (16)
//0x95, 0x03, // REPORT_COUNT (03)
0x95, 0x02, // REPORT_COUNT (02) //milos
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x55, 0x00, // UNIT_EXPONENT (00)
0x66, 0x00, 0x00, // UNIT (None)
0x09, 0x52, // USAGE (Gain)
0x15, 0x00, // LOGICAL_MINIMUM (00)
//0x26, 0xFF, 0x00, // LOGICAL_MAXIMUM (255)
0x26, 0xFF, 0x7F, // LOGICAL_MAXIMUM (32767) //milos
0x35, 0x00, // PHYSICAL_MINIMUM (00)
//0x46, 0x10, 0x27, // PHYSICAL_MAXIMUM (10000)
0x46, 0xFF, 0x7F, // PHYSICAL_MAXIMUM (32767) //milos
//0x75, 0x08, // REPORT_SIZE (08)
0x75, 0x10, // REPORT_SIZE (16) //milos
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x09, 0x53, // USAGE (Trigger Button)
0x15, 0x01, // LOGICAL_MINIMUM (01)
0x25, 0x08, // LOGICAL_MAXIMUM (08)
0x35, 0x01, // PHYSICAL_MINIMUM (01)
0x45, 0x08, // PHYSICAL_MAXIMUM (08)
0x75, 0x08, // REPORT_SIZE (08)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x09, 0x55, // USAGE (Axes Enable)
0xA1, 0x02, // COLLECTION (Logical)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
#ifdef NB_FF_AXIS>1
0x09, 0x31, // USAGE (Y)
#endif
0x15, 0x00, // LOGICAL_MINIMUM (00)
0x25, 0x01, // LOGICAL_MAXIMUM (01)
0x75, 0x01, // REPORT_SIZE (01)
0x95, NB_FF_AXIS, // REPORT_COUNT (NB_FF_AXIS)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xC0, // END COLLECTION ()

0x05, 0x0F, // USAGE_PAGE (Physical Interface)
0x09, 0x56, // USAGE (Direction Enable)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x95, 0x07 - NB_FF_AXIS, // REPORT_COUNT (05 (2 axes) or 06 (1 axes)) seems to be for padding
0x91, 0x03, // OUTPUT (Constant,Var,Abs)
0x09, 0x57, // USAGE (Direction)
0xA1, 0x02, // COLLECTION (Logical)
0x0B, 0x01, 0x00, 0x0A, 0x00, // USAGE (Ordinals:Instance 1)
0x0B, 0x02, 0x00, 0x0A, 0x00, // USAGE (Ordinals:Instance 2)
0x66, 0x14, 0x00, // UNIT (Eng Rot:Angular Pos)
0x55, 0xFE, // UNIT_EXPONENT (-2) //milos, 16bit
0x15, 0x00, // LOGICAL_MINIMUM (00)
0x27, 0xFF, 0xFF, 0x00, 0x00, // LOGICAL_MAXIMUM (65535) //milos, 16bit
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x47, 0x9F, 0x8C, 0x00, 0x00, // PHYSICAL_MAXIMUM (35999) //milos, 16bit
0x75, 0x10, // REPORT_SIZE (16) //milos, 16bit
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x55, 0x00, // UNIT_EXPONENT (00)
0x66, 0x00, 0x00, // UNIT (None)
0xC0, // END COLLECTION ()
0x05, 0x0F, // USAGE_PAGE (Physical Interface)
0x09, 0xA7, // USAGE (Start Delay) //milos, uncommented
0x66, 0x01, 0x10, // UNIT (SI Lin:Time)
0x55, 0xFD, // UNIT_EXPONENT (-3)
0x15, 0x00, // LOGICAL_MINIMUM (00)
0x27, 0xFF, 0xFF, 0x00, 0x00, // LOGICAL_MAXIMUM (65535)
0x35, 0x00, // PHYSICAL_MINIMUM (00)
0x47, 0xFF, 0xFF, 0x00, 0x00, // PHYSICAL_MAXIMUM (65535)
0x75, 0x10, // REPORT_SIZE (16)
0x95, 0x01, // REPORT_COUNT (01)
0x91, 0x02, // OUTPUT (Data,Var,Abs) //milos, uncommented
0x66, 0x00, 0x00, // UNIT (None)
0x55, 0x00, // UNIT_EXPONENT (00)
0xC0, // END COLLECTION ()