Html Objects Download. This topic describes the features of I8042prt, the Microsoft Windows 2000 and later system function driver for PS/2-style keyboard and mouse devices. I8042prt implements the I8042prt service and its executable image is i8042prt.sys. The features of I8042prt include: • Hardware-dependent, simultaneous operation of a PS/2-style keyboard and mouse device. The keyboard and mouse share I/O ports, but use different interrupts, interrupt service routines (ISR), and ISR dispatch completion routines. • Plug and Play, power management, and WMI • Operation of legacy devices. • Connection of a and a. I8042prt uses the class service callback to transfer data from the input data buffer of I8042prt to the data buffer of the class driver.

Mar 27, 2012. IntelliPoint includes support for the Microsoft Explorer Touch Mouse and an application to practice using the Microsoft Touch Mouse. With IntelliPoint, setup automatically detects your mouse model. If you have more than one mouse attached to your computer, each mouse model can have different button.

Microsoft Mouse and Keyboard Center is software that provides drivers for most Microsoft mice and keyboards. It allows the user to. Dec 30, 2012 I have a MS Digital Keyboard 3000 and comparing the keyboard layout, they are simular, the thing is the MS Mouse and Keyboard Centre recognises my. (e) there is no PS/2 keyboard or PS/2 mouse driver in Device Manager with a yellow icon. Where working and in Device Manager under Keyboard was a 'Standard PS/2 Keyboard' that was not greyed out and under 'Mice and other pointing devices' was a 'Microsoft PS/2 Mouse' that was not greyed out.

• Addition of a vendor-supplied callback routines for a keyboard device. An optional upper-level device filter driver provides the callback routines. Cleveland Welding Serial Numbers. • Addition of a vendor-supplied callback routine and a custom callback routine. Optional upper-level device filter drivers provide these callbacks routines. An upper-level device filter driver can use write buffer requests to synchronize its writes to a device with the ISR of the device and other reads and writes on the device.

The start information request passes a pointer to an interrupt object of a device to an upper-level filter driver. The filter driver can use the interrupt object to synchronize its operation with the ISR of the device.

An upper-level device filter driver can use the callback routines in the context of the ISR of a device to write to a device, and to queue data packets from the device. Registry settings associated with the PS/2 driver The following is a list of registry keys associated with the PS/2 port driver.

[Key: HKLM SYSTEM CurrentControlSet Services i8042prt Parameters] • EnableWheelDetection [REG_DWORD] – Determines whether the driver attempts to detect and enable the wheel on the mouse device. Some devices are equipped with a mouse wheel to provide rapid scrolling and other control features if supported by an application. • ResendIterations [REG_DWORD] – Specifies the maximum number of times a hardware operation is attempted. If the number of trials exceeds the value of this entry, Windows considers the operation to have failed. • NumberOfButtons [REG_DWORD] – Specifies the number of buttons on the mouse-port mouse at startup. If the number of buttons detected at startup is incorrect, you can override it by changing the value of this entry.

• KeyboardDataQueueSize [REG_DWORD] – Specifies the number of keyboard events that the keyboard driver buffers. This entry is also used in calculating the size of the keyboard driver's internal buffer in nonpaged memory pool. To determine the number of bytes to allocate for the buffer, the system multiplies the size of the KEYBOARD_INPUT_DATA structure by the value of KeyboardDataQueueSize.

• PollStatusIterations [REG_DWORD] – Specifies the maximum number of times the system verifies interrupts on the i8042 controller status register. If the interrupt cannot be verified in the number of trials specified in the value of this entry, the interrupt is ignored. • PollingIterations [REG_DWORD] - Specifies the maximum number of times Windows 2000 polls the hardware. If the number of trials specified in this entry is exceeded, Windows 2000 stops polling.

• SampleRate [REG_DWORD] – Specifies how often the PS/2 driver measures the characteristics and activities of the PS/2 mouse. The driver uses the information gathered through sampling to optimize the operation of the mouse device. • PollingIterationsMaximum [REG_DWORD] – Specifies the maximum number of times Windows 2000 polls the hardware on older-style AT keyboards.