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Joystick Detection tweaks for Raspberry PI OS / Linux

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This commit is contained in:
Jochen Heizmann 2025-06-21 11:28:12 +02:00
parent e7ea71be03
commit be0d9e8a56
1 changed files with 21 additions and 2 deletions
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23
src/linux_joystick.c
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@ -157,10 +157,19 @@ static GLFWbool openJoystickDevice(const char* path)
}
// Ensure this device supports the events expected of a joystick
if (!isBitSet(EV_ABS, evBits))
// NOTE: SDL2 based Joystick Check
if (isBitSet(BTN_STYLUS, keyBits) ||
isBitSet(BTN_TOOL_PEN, keyBits) ||
isBitSet(BTN_TOOL_FINGER, keyBits) ||
isBitSet(BTN_MOUSE, keyBits) ||
isBitSet(BTN_TOUCH, keyBits) ||
(keyBits[0] & 0xFFFFFFFE) != 0)
{
close(linjs.fd);
return GLFW_FALSE;
} else if (!isBitSet(EV_ABS, evBits)) {
close(linjs.fd);
return GLFW_FALSE;
}
char name[256] = "";
@ -168,6 +177,17 @@ static GLFWbool openJoystickDevice(const char* path)
if (ioctl(linjs.fd, EVIOCGNAME(sizeof(name)), name) < 0)
strncpy(name, "Unknown", sizeof(name));
// NOTE: Some devices are still indentified as Gamepad devices (Rapsbery PI 500, Hypertouch Square Display).
// They are filtered out for enumeration. I wish there is a more robust way to detect if a device is really
// a gamecontroller/gamepad, but I wasn't able to find a way.
if (strstr(name, "Keyboard System Control") ||
strstr(name, "Keyboard Consumer Control" ||
strstr(name, "11-0048 EP0110M09") ||
strstr(name, "HID 046a:0023")) {
close(linjs.fd);
return GLFW_FALSE;
}
char guid[33] = "";
// Generate a joystick GUID that matches the SDL 2.0.5+ one
@ -433,4 +453,3 @@ void _glfwUpdateGamepadGUIDLinux(char* guid)
}
#endif // GLFW_BUILD_LINUX_JOYSTICK