Hi,
i am working on a HID Device which is going to be a mouse. But instead of relative values it is reporting the X & Y axes in absolute values. (reason is it is a pointing device)
However i am using the following HID Report Descriptor and figured out the LOCIGAL_MAXIMUM values are ignored, instead half of the report size is used (in this case 511). I changed the report size to 16 and then my courses only moved slightly, since it is expecting 65535 as maximum value.
Am i missing something, or how do i get it to use 768 & 526 as maximum values?
CONST HID_REPORT_DESCRIPTOR HIDReportDescriptor = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x85, DEFAULT_REPORT_ID, // REPORT_ID (1)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x03, // USAGE_MAXIMUM (Button 3)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x05, // REPORT_SIZE (5)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0x00, 0x03, // LOGICAL_MAXIMUM (768)
0x75, 0x0A, // REPORT_SIZE (10)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x06, // REPORT_SIZE (6)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x09, 0x31, // USAGE (Y)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0x0E, 0x02, // LOGICAL_MAXIMUM (526)
0x75, 0x0A, // REPORT_SIZE (10)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x06, // REPORT_SIZE (6)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
};