Run i2cdetect # where # is the number you got from running the prior command. Run i2cdetect -l, and note the number for SMBus (It's usually zero). Get i2c-tools from your package manager.psmouse.intertouch=1) for your synaptics trackpad, then it's compatible Check under Device Manager for a Synaptics SMBus device.Look for "VoodooPS2Trackpad: Trackpad supports SMBus operation" within macOS logs (may need to use sudo dmesg to see this).Look in IORegistryExplorer under ApplePS2SynapticsTrackpad, and look for the value Intertouch Support=True.MacOS (Requires Acidanthera's VoodooPS2 version 2.2.0 or above): Pay close attention to which bus it works over. Synaptic trackpads generally work over SMBus or I2C, though not both. Force Touch emulation for clickpads (press down clickpad and increase finger pressure). ![]() ![]() When following the instructions below, make sure you only select I2C or SMBus depending on your trackpad's capabilities. This works for both I2C HID trackpads from Synaptic as well as Synaptic's SMBus trackpads. A port for macOS of Synaptic's RMI Trackpad driver from Linux.
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