[Bug 233884] Corsair CORSAIR K70 RGB MK.2 / K63 / K63 Wireless not working

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233884

--- Comment #16 from ali at mashtizadeh.com <ali at mashtizadeh.com> ---
I can look at this after this week.

Yes, it seems to only send in the bit vector format.  I think I understand the
decoding.  The bit set is the usage ID in the keyboard page description in the
specification.  The modifier key bits are the same then the subsequent bytes
are the keys pressed.

The media keys and volume wheel are report id 2 which is a consumer control
device and appears to follow spec.  The LED control keys are 3.

0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
0x09, 0x06,        // Usage (Keyboard)
0xA1, 0x01,        // Collection (Application)
0x85, 0x01,        //   Report ID (1)
0x05, 0x07,        //   Usage Page (Kbrd/Keypad)
0x19, 0xE0,        //   Usage Minimum (0xE0)
0x29, 0xE7,        //   Usage Maximum (0xE7)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x08,        //   Report Count (8)
0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0x19, 0x00,        //   Usage Minimum (0x00)
0x29, 0x97,        //   Usage Maximum (0x97)
0x15, 0x00,        //   Logical Minimum (0)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x98,        //   Report Count (-104)
0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0x05, 0x08,        //   Usage Page (LEDs)
0x19, 0x01,        //   Usage Minimum (Num Lock)
0x29, 0x03,        //   Usage Maximum (Scroll Lock)
0x25, 0x01,        //   Logical Maximum (1)
0x75, 0x01,        //   Report Size (1)
0x95, 0x03,        //   Report Count (3)
0x91, 0x02,        //   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position,Non-volatile)
0x75, 0x05,        //   Report Size (5)
0x95, 0x01,        //   Report Count (1)
0x91, 0x01,        //   Output (Const,Array,Abs,No Wrap,Linear,Preferred
State,No Null Position,Non-volatile)
0xC0,              // End Collection
0x05, 0x0C,        // Usage Page (Consumer)
0x09, 0x01,        // Usage (Consumer Control)
0xA1, 0x01,        // Collection (Application)
0x85, 0x02,        //   Report ID (2)
0x05, 0x0C,        //   Usage Page (Consumer)
0x19, 0x00,        //   Usage Minimum (Unassigned)
0x2A, 0xFF, 0x0F,  //   Usage Maximum (0x0FFF)
0x15, 0x00,        //   Logical Minimum (0)
0x26, 0xFF, 0x0F,  //   Logical Maximum (4095)
0x75, 0x10,        //   Report Size (16)
0x95, 0x02,        //   Report Count (2)
0x81, 0x00,        //   Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0xC0,              // End Collection
0x06, 0xC0, 0xFF,  // Usage Page (Vendor Defined 0xFFC0)
0x09, 0x02,        // Usage (0x02)
0xA1, 0x01,        // Collection (Application)
0x85, 0x03,        //   Report ID (3)
0x15, 0x00,        //   Logical Minimum (0)
0x26, 0xFF, 0x00,  //   Logical Maximum (255)
0x95, 0x3F,        //   Report Count (63)
0x75, 0x08,        //   Report Size (8)
0x09, 0x02,        //   Usage (0x02)
0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0xC0,              // End Collection
0x06, 0xC2, 0xFF,  // Usage Page (Vendor Defined 0xFFC2)
0x09, 0x03,        // Usage (0x03)
0xA1, 0x01,        // Collection (Application)
0x85, 0x0E,        //   Report ID (14)
0x15, 0x00,        //   Logical Minimum (0)
0x26, 0xFF, 0x00,  //   Logical Maximum (255)
0x95, 0x3F,        //   Report Count (63)
0x75, 0x08,        //   Report Size (8)
0x09, 0x03,        //   Usage (0x03)
0x81, 0x02,        //   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0xC0,              // End Collection
0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
0x09, 0x02,        // Usage (Mouse)
0xA1, 0x01,        // Collection (Application)
0x85, 0x05,        //   Report ID (5)
0x09, 0x01,        //   Usage (Pointer)
0xA1, 0x00,        //   Collection (Physical)
0x05, 0x09,        //     Usage Page (Button)
0x19, 0x01,        //     Usage Minimum (0x01)
0x29, 0x20,        //     Usage Maximum (0x20)
0x15, 0x00,        //     Logical Minimum (0)
0x25, 0x01,        //     Logical Maximum (1)
0x95, 0x20,        //     Report Count (32)
0x75, 0x01,        //     Report Size (1)
0x81, 0x02,        //     Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No
Null Position)
0x05, 0x01,        //     Usage Page (Generic Desktop Ctrls)
0x09, 0x30,        //     Usage (X)
0x09, 0x31,        //     Usage (Y)
0x16, 0x01, 0x00,  //     Logical Minimum (1)
0x26, 0xFF, 0x7F,  //     Logical Maximum (32767)
0x75, 0x10,        //     Report Size (16)
0x95, 0x02,        //     Report Count (2)
0x81, 0x06,        //     Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No
Null Position)
0x09, 0x38,        //     Usage (Wheel)
0x15, 0x81,        //     Logical Minimum (-127)
0x25, 0x7F,        //     Logical Maximum (127)
0x75, 0x08,        //     Report Size (8)
0x95, 0x01,        //     Report Count (1)
0x81, 0x06,        //     Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No
Null Position)
0xC0,              //   End Collection
0xC0,              // End Collection

// 192 bytes

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