0x09, 0x02, /* Usage (Vendor Defined) */\r
0x75, 0x08, /* Report Size (8) */\r
0x95, GENERIC_REPORT_SIZE, /* Report Count (GENERIC_REPORT_SIZE) */\r
- 0x15, 0x00, /* Logical Minimum (0) */\r
- 0x25, 0xff, /* Logical Maximum (255) */\r
+ 0x15, 0x80, /* Logical Minimum (-128) */\r
+ 0x25, 0x7F, /* Logical Maximum (127) */\r
0x81, 0x02, /* Input (Data, Variable, Absolute) */\r
0x09, 0x03, /* Usage (Vendor Defined) */\r
0x75, 0x08, /* Report Size (8) */\r