Comments (15)
atar-axis
commented on July 17, 2024
I once extracted the Windows mapping using USBlyzer,
but I am not sure if it is the same as it would be using the method above
05 01 09 05 A1 01 A1 00 09 30 09 31 15 00 27 FF FF 00 00 95 02 75 10 81 02 C0 A1 00 09 33 09 34 15 00 27 FF FF 00 00 95 02 75 10 81 02 C0 05 01 09 32 15 00 26 FF 03 95 01 75 0A 81 02 15 00 25 00 75 06 95 01 81 03 05 01 09 35 15 00 26 FF 03 95 01 75 0A 81 02 15 00 25 00 75 06 95 01 81 03 05 09 19 01 29 0A 95 0A 75 01 81 02 15 00 25 00 75 06 95 01 81 03 05 01 09 39 15 01 25 08 35 00 46 3B 01 66 14 00 75 04 95 01 81 42 75 04 95 01 15 00 25 00 35 00 45 00 65 00 81 03 A1 02 05 09 97 15 00 25 01 75 04 95 01 91 02 15 00 25 00 91 03 09 70 15 00 25 64 75 08 95 04 91 02 09 50 66 01 10 55 0E 26 FF 00 95 01 91 02 09 A7 91 02 65 00 55 00 09 7C 91 02 C0 05 01 09 80 A1 00 09 85 15 00 25 01 95 01 75 01 81 02 15 00 25 00 75 07 95 01 81 03 C0 05 06 09 20 15 00 26 FF 00 75 08 95 01 81 02 C0
from xpadneo.
atar-axis
commented on July 17, 2024
I now tried the method above, the Gamepad I borrowed is now paired with both - Linux and Windows (I copied the LinkKey from Windows to Linux).
The problem is: I still cannot reproduce it... the events are still the same, the (old) mapping is still correct.
I guess it never changed it's behaviour in Windows.
@rootyElf: You told me that you did it as described above (or here: paroj/xpad#53 (comment)), can you maybe help me to reproduce that?
I would really appreciate if anyone could confirm that method.
from xpadneo.
atar-axis
commented on July 17, 2024
old one
I found an old descriptor which i recorded when I started development
05 01 09 05 a1 01 85 01 09 01 a1 00 09 30 09 31 15 00 27 ff ff 00 00 95 02 75
10 81 02 c0 09 01 a1 00 09 33 09 34 15 00 27 ff ff 00 00 95 02 75 10 81 02 c0
05 01 09 32 15 00 26 ff 03 95 01 75 0a 81 02 15 00 25 00 75 06 95 01 81 03 05
01 09 35 15 00 26 ff 03 95 01 75 0a 81 02 15 00 25 00 75 06 95 01 81 03 05 01
09 39 15 01 25 08 35 00 46 3b 01 66 14 00 75 04 95 01 81 42 75 04 95 01 15 00
25 00 35 00 45 00 65 00 81 03 05 09 19 01 29 0a 15 00 25 01 75 01 95 0a 81 02
15 00 25 00 75 06 95 01 81 03 05 01 09 80 85 02 a1 00 09 85 15 00 25 01 95 01
75 01 81 02 15 00 25 00 75 07 95 01 81 03 c0 05 0f 09 21 85 03 a1 02 09 97 15
00 25 01 75 04 95 01 91 02 15 00 25 00 75 04 95 01 91 03 09 70 15 00 25 64 75
08 95 04 91 02 09 50 66 01 10 55 0e 15 00 26 ff 00 75 08 95 01 91 02 09 a7 15
00 26 ff 00 75 08 95 01 91 02 65 00 55 00 09 7c 15 00 26 ff 00 75 08 95 01 91
02 c0 85 04 05 06 09 20 15 00 26 ff 00 75 08 95 01 81 02 c0 00which translates to:
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x05, // Usage (Game Pad)
0xA1, 0x01, // Collection (Application)
0x85, 0x01, // Report ID (1)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x15, 0x00, // Logical Minimum (0)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65534)
0x95, 0x02, // Report Count (2)
0x75, 0x10, // Report Size (16)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x09, 0x33, // Usage (Rx)
0x09, 0x34, // Usage (Ry)
0x15, 0x00, // Logical Minimum (0)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65534)
0x95, 0x02, // Report Count (2)
0x75, 0x10, // Report Size (16)
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, 0x32, // Usage (Z)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x03, // Logical Maximum (1023)
0x95, 0x01, // Report Count (1)
0x75, 0x0A, // Report Size (10)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x06, // Report Size (6)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x35, // Usage (Rz)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x03, // Logical Maximum (1023)
0x95, 0x01, // Report Count (1)
0x75, 0x0A, // Report Size (10)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x06, // Report Size (6)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x39, // Usage (Hat switch)
0x15, 0x01, // Logical Minimum (1)
0x25, 0x08, // Logical Maximum (8)
0x35, 0x00, // Physical Minimum (0)
0x46, 0x3B, 0x01, // Physical Maximum (315)
0x66, 0x14, 0x00, // Unit (System: English Rotation, Length: Centimeter)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x81, 0x42, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x35, 0x00, // Physical Minimum (0)
0x45, 0x00, // Physical Maximum (0)
0x65, 0x00, // Unit (None)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x09, // Usage Page (Button)
0x19, 0x01, // Usage Minimum (0x01)
0x29, 0x0A, // Usage Maximum (0x0A)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x0A, // Report Count (10)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x06, // Report Size (6)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x80, // Usage (Sys Control)
0x85, 0x02, // Report ID (2)
0xA1, 0x00, // Collection (Physical)
0x09, 0x85, // Usage (Sys Main Menu)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x01, // Report Count (1)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x07, // Report Size (7)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0F, // Usage Page (PID Page)
0x09, 0x21, // Usage (0x21)
0x85, 0x03, // Report ID (3)
0xA1, 0x02, // Collection (Logical)
0x09, 0x97, // Usage (0x97)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x91, 0x03, // Output (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0x70, // Usage (0x70)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x64, // Logical Maximum (100)
0x75, 0x08, // Report Size (8)
0x95, 0x04, // Report Count (4)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0x50, // Usage (0x50)
0x66, 0x01, 0x10, // Unit (System: SI Linear, Time: Seconds)
0x55, 0x0E, // Unit Exponent (-2)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0xA7, // Usage (0xA7)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x65, 0x00, // Unit (None)
0x55, 0x00, // Unit Exponent (0)
0x09, 0x7C, // Usage (0x7C)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0xC0, // End Collection
0x85, 0x04, // Report ID (4)
0x05, 0x06, // Usage Page (Generic Dev Ctrls)
0x09, 0x20, // Usage (Battery Strength)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x00, // Unknown (bTag: 0x00, bType: 0x00)
// 307 bytescurrent one
The current one is:
05 01 09 05 a1 01 85 01 09 01 a1 00 09 30 09 31 15 00 27 ff ff 00 00 95 02 75
10 81 02 c0 09 01 a1 00 09 32 09 35 15 00 27 ff ff 00 00 95 02 75 10 81 02 c0
05 02 09 c5 15 00 26 ff 03 95 01 75 0a 81 02 15 00 25 00 75 06 95 01 81 03 05
02 09 c4 15 00 26 ff 03 95 01 75 0a 81 02 15 00 25 00 75 06 95 01 81 03 05 01
09 39 15 01 25 08 35 00 46 3b 01 66 14 00 75 04 95 01 81 42 75 04 95 01 15 00
25 00 35 00 45 00 65 00 81 03 05 09 19 01 29 0f 15 00 25 01 75 01 95 0f 81 02
15 00 25 00 75 01 95 01 81 03 05 0c 0a 24 02 15 00 25 01 95 01 75 01 81 02 15
00 25 00 75 07 95 01 81 03 05 0c 09 01 85 02 a1 01 05 0c 0a 23 02 15 00 25 01
95 01 75 01 81 02 15 00 25 00 75 07 95 01 81 03 c0 05 0f 09 21 85 03 a1 02 09
97 15 00 25 01 75 04 95 01 91 02 15 00 25 00 75 04 95 01 91 03 09 70 15 00 25
64 75 08 95 04 91 02 09 50 66 01 10 55 0e 15 00 26 ff 00 75 08 95 01 91 02 09
a7 15 00 26 ff 00 75 08 95 01 91 02 65 00 55 00 09 7c 15 00 26 ff 00 75 08 95
01 91 02 c0 85 04 05 06 09 20 15 00 26 ff 00 75 08 95 01 81 02 c0 00size: 335
which translates to:
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x05, // Usage (Game Pad)
0xA1, 0x01, // Collection (Application)
0x85, 0x01, // Report ID (1)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x15, 0x00, // Logical Minimum (0)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65534)
0x95, 0x02, // Report Count (2)
0x75, 0x10, // Report Size (16)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x09, 0x32, // Usage (Z)
0x09, 0x35, // Usage (Rz)
0x15, 0x00, // Logical Minimum (0)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65534)
0x95, 0x02, // Report Count (2)
0x75, 0x10, // Report Size (16)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x02, // Usage Page (Sim Ctrls)
0x09, 0xC5, // Usage (Brake)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x03, // Logical Maximum (1023)
0x95, 0x01, // Report Count (1)
0x75, 0x0A, // Report Size (10)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x06, // Report Size (6)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x02, // Usage Page (Sim Ctrls)
0x09, 0xC4, // Usage (Accelerator)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x03, // Logical Maximum (1023)
0x95, 0x01, // Report Count (1)
0x75, 0x0A, // Report Size (10)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x06, // Report Size (6)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x39, // Usage (Hat switch)
0x15, 0x01, // Logical Minimum (1)
0x25, 0x08, // Logical Maximum (8)
0x35, 0x00, // Physical Minimum (0)
0x46, 0x3B, 0x01, // Physical Maximum (315)
0x66, 0x14, 0x00, // Unit (System: English Rotation, Length: Centimeter)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x81, 0x42, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x35, 0x00, // Physical Minimum (0)
0x45, 0x00, // Physical Maximum (0)
0x65, 0x00, // Unit (None)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x09, // Usage Page (Button)
0x19, 0x01, // Usage Minimum (0x01)
0x29, 0x0F, // Usage Maximum (0x0F)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x0F, // Report Count (15)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x0C, // Usage Page (Consumer)
0x0A, 0x24, 0x02, // Usage (AC Back)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x01, // Report Count (1)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x07, // Report Size (7)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x0C, // Usage Page (Consumer)
0x09, 0x01, // Usage (Consumer Control)
0x85, 0x02, // Report ID (2)
0xA1, 0x01, // Collection (Application)
0x05, 0x0C, // Usage Page (Consumer)
0x0A, 0x23, 0x02, // Usage (AC Home)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x01, // Report Count (1)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x07, // Report Size (7)
0x95, 0x01, // Report Count (1)
0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0F, // Usage Page (PID Page)
0x09, 0x21, // Usage (0x21)
0x85, 0x03, // Report ID (3)
0xA1, 0x02, // Collection (Logical)
0x09, 0x97, // Usage (0x97)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x00, // Logical Maximum (0)
0x75, 0x04, // Report Size (4)
0x95, 0x01, // Report Count (1)
0x91, 0x03, // Output (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0x70, // Usage (0x70)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x64, // Logical Maximum (100)
0x75, 0x08, // Report Size (8)
0x95, 0x04, // Report Count (4)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0x50, // Usage (0x50)
0x66, 0x01, 0x10, // Unit (System: SI Linear, Time: Seconds)
0x55, 0x0E, // Unit Exponent (-2)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x09, 0xA7, // Usage (0xA7)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x65, 0x00, // Unit (None)
0x55, 0x00, // Unit Exponent (0)
0x09, 0x7C, // Usage (0x7C)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0xC0, // End Collection
0x85, 0x04, // Report ID (4)
0x05, 0x06, // Usage Page (Generic Dev Ctrls)
0x09, 0x20, // Usage (Battery Strength)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x00, // Unknown (bTag: 0x00, bType: 0x00)
// 335 bytesThe second one (which seems to be the standard descriptor on linux) is btw not fitting the actual input! My current guess is: the second one is simply wrong and should be completely replaced by the first one, i am currently evaluating that theory.
UPDATE
Okay, looks like that's really the case, so in essence it's the following what happens:
- The gamepad sends an report descriptor which includes
BRAKEandGASand so on (the "new" one) - But the reports are still following the "old" descriptor (the one with
ZandRz) - It would be super easy to fix that, since the kernel offers an "fix_report" function, we could simply replace the "new one" by the "old one"
My concerns are, that this is not always the case... maybe sometimes it sends the right report (one that is fitting its descriptor)... I don't know yet - we definitely have to check that. For now, I will just activate the second mapping.
from xpadneo.
atar-axis
commented on July 17, 2024
I found, that the third mapping (which is currently called map_hid_to_input_unknown in source), is the one i get in Ubuntu 17.01. Funny... really - how does the Controller distinguish between the other sides OS? And why!?
Anyway, the current problem is: This "mode" uses the same hid-descriptor as the other one (the one i called map_hid_to_input_rs335 - the funny thing is, both are correct and fit the descriptor, at least in the sense of "which buttons are reported".
,
Next I will check which mode sends the correct report, by "correct" I mean "it fits the descriptor bitwise".
UPDATE
Oh man... okay, lets try to explain what I found out xD
- The controller has three (at least) different behaviours,
- one which I observed in Arch,
- one I observed in Ubuntu and
- a third one, which i believe is the one before the Firmware update.
- The controller reports (at least) two different descriptors.
- One (which has 335 bytes) is 100% corrupted, since it reports
GAS,BRAKEandZ,Rzbut is missingRxandRy. If we replaceZbyRxandRzbyRy, then it fits the ARCH behaviour. - The other one (which has 307 bytes), fits the Ubuntu behaviour if we modify the second report from
AC_HOMEtoSystem Main Menu
I am not sure, but I think the 307 byte descriptor fits exactly the old behaviour (I'm guessing).
-
Both, Ubuntu and Arch, are reporting the new, but never correct, descriptor.
-
On all behaviours, the button ordering is mixed up - that's theretically OK since the HID usage table does not stipulate which number is which button.
As you can see, it's totally messed up - i mean TOTALLY!
I will give it a try to clean that up a bit - but I have to give back the controller I borrowed tomorrow, therefore it could take a while.
from xpadneo.
kakra
commented on July 17, 2024
As per my findings, I can maybe clean this up a little bit:
The mode switch happens during pair time, that is: If you pair it in Windows, then copy the linkkey over, the controller stays in Windows mode. If you pair it in Linux natively, the controller switches to Android mode.
Older firmware versions expose a different behavior what is why you may have seen a third mode.
I don't think the product id ever changes, except you've done a controller firmware update. While in Windows, that may happen behind your back without you even noticing. It may look like the product id has changed next time you look in Linux.
I suggest putting one variable out of the equation: Xpadneo at current stage should be developed only against the latest firmware version of the controller, and it should be developed with Android mode first in mind because I guess majority of users won't use the linkkey hack. Both facts should be documented. If xpadneo somehow detects that the device is not in Android mode, it can/should fall back to Windows mode. All other mappings are probably older firmware or different controller model. We should encourage users to update the controller firmware first by pairing the device temporarily to a Windows machine and running the Xbox Windows app to update the controller.
Is there a way to read the controller firmware version from the device descriptor?
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atar-axis
commented on July 17, 2024
The mode switch happens during pair time, that is: If you pair it in Windows, then copy the linkkey over, the controller stays in Windows mode. If you pair it in Linux natively, the controller switches to Android mode.
That fits @rootyElf's assertion, but when I tried it ony my machine, I couldn't reproduce that. Where you able to observe that behaviour on your machine?
I don't think the product id ever changes, except you've done a controller firmware update.
Right, it changes from 0x02E0 to 0x02FD when you update to the newest firmware (that's at least what I observed on @Dinopron91's controller).
I suggest putting one variable out of the equation: Xpadneo at current stage should be developed only against the latest firmware version of the controller, and it should be developed with Android mode first in mind because I guess majority of users won't use the linkkey hack.
The problem is: That this sometimes also happens without copying the linkkey.
If xpadneo somehow detects that the device is not in Android mode, it can/should fall back to Windows mode.
The case is, that it is really not that easy to detect if it is in Windows mode or not since - sometimes - the wrong descriptor is sent by the device, and it is the descriptor which is normally used to distinguish between different behaviors.
Is there a way to read the controller firmware version from the device descriptor?
See above, it's not the descriptor which changes, but other BT attributes (the product id) - but I only saw that once, therefore....
What I did tonight is: I captured the Bluetooth communication between the gamepad and an windows machine (in fact I captured the USB communication - since my bluetooth module is luckily attached to the USB-bus).
As a result, i now can confirm, that the 307 byte long report is exactly the windows report - it becomes a bit more clear now.
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atar-axis
commented on July 17, 2024
Ok, finally the LinkKey thing worked here too, so the situation now is the following:
- the gamepad sends us the linux descriptor (337 bytes long)
- but it behaves like it where in windows (the actual reports send are windows events, which do not fit the linux descriptor)
The good thing is, that it is possible to differentiate the actual reports by their length:
- the windows report has 15 bytes (without the leading report number)
0137 86 10 84 d5 80 fb 7e 00 00 00 00 00 00 00 - the linux report has 16 bytes
012c 84 14 85 09 81 17 7f 00 00 00 00 00 00 00 00
In order to make the decriptor and the actual report fit, we could...
- change the report descriptor to the one which is used by windows
- manipulate the incoming reports as they arrive (which i would prefer)
"translate" the windows reports to the linux ones
Descriptors (announced reports):
- Windows
- Linux
Behaviour (actual send reports):
- Windows
- Linux
- Unknown, observed in Ubuntu
Next step is to inspect the behaviour i got in Ubuntu some days before.
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atar-axis
commented on July 17, 2024
Okay it looks like the third behaviour (i saw in Ubuntu) does not really exist but was produced by the "linux mapping" on the "windows events".
I therefore can complete the mapping now and will do so tonight/tomorrow. Will reference this issue then.
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kakra
commented on July 17, 2024
I updated my kernel to 4.15 with your latest version (as of commit 40266c3) of hid-xpadneo.c and my gamepad is properly detected in Android mode and it looks like it's properly mapped. I could even remove my swap X/Y patch (in fact, I even had to).
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atar-axis
commented on July 17, 2024
I uploaded a first fix for the windows/linux mapping problem. This is a dirty one, since the mapping is already done when we finally can tell if the gamepad sends the correct reports or not...
I will take a look deeper into the hid-core of linux to find a better solution (something like call the mapping hook a second time, by hand), but at least for now it should be fixed - unfortunately i hadn't time to test it thoroughly yet, but I will do so withing the next days.
Will keep that open until I tested it and - hopefully - found a better solution.
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atar-axis
commented on July 17, 2024
The distinction between Windows is done by the Service Discovery Protocol (SDP).
bt_conn_xbox_win_filtered.zip
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atar-axis
commented on July 17, 2024
I tested the windows mapping fix, it still has two little problems:
- The automatic fix does not work when the gamepad is restarted
- Ry is reccognized as Rz and Rx as Z
I know where the problem is and will overwork it ASAP.
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atar-axis
commented on July 17, 2024
I fixed it and did some tests, should work now as expected - no matter to which OS it was paired before.
It's still not the cleanes solution - but it looks like the one I can think of (changing the report descriptor) is not possible anymore at that time (since hid_parse and report_fixup where already invoked when we recognize the wrong behaviour).
Close it for now.
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atar-axis
commented on July 17, 2024
I was poking around in the latest firmware last night and I found some interesting things, one of which is:
0001:A220 Android HID Desc.
0001:A230 MS HID Desc.
Hence the second descriptor is indeed for Android, not Linux (as I thought).
Note to self: the Descriptor starts at 0006:3410
Report ID01: 0006:3410
Report ID02: 0006:3489
Report ID03: 0006:349E
Report ID04: 0006:34D8
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kakra
commented on July 17, 2024
It is indeed for Android, that was already documented some longer time ago. It is a feature of the gamepad. It's just that Android runs on Linux, and thus the gamepad detects all Linux kernels out there as Android upon pairing.
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