SampleRate

HKLM\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters

Data type Range Default value
REG_DWORD Mouse sampling rate in Hz 0x3C (60 Hz)

Description

(This entry has limited use in Windows 2000. See Notes below.)

Specifies how often the PS/2 driver measures the characteristics and activities of the PS/2 mouse. The driver uses the information gathered by sampling to optimize the operation of the mouse device.

Note Image Note

This entry is used only when a device is installed. When the system recognizes a new device, it copies this entry to a device-specific subkey in the Enum subkey. Thereafter, it uses only the entries in Enum.

Tip Image Tip

To view or change the value of this entry for a particular PS/2 mouse, use Device Manager. In the tree control, click Device and then, in the results pane, click Mouse, double-click the device name, and click the Advanced Settings tab. This value appears in the Sample Rate box.