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Send Notice: PC Matic will NOT share or sell your email address and we have the appropriate procedures to safeguard against unauthorized access. Thank You! Free Analysis. Check Ping. Learn More about PC Matic The ISR callback is optional and is provided by an upper-level mouse filter driver. Saves the upper-level information passed to Moufiltr, which includes the context of an upper-level device object and a pointer to an ISR callback.
For all other requests, Moufiltr skips the current IRP stack and sends the request down the device stack without further processing. A filter service callback can be configured to modify the input data that is transferred from the device's input buffer to the class data queue.
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If you are looking to fix a mouse or keyboard, see: This topic discusses keyboard and mouse HID client drivers. Converts HID usages into scancodes to interface with the existing keyboard class driver. The driver does support both absolute and relative pointing devices. Connection of a keyboard class service callback routine and a mouse class service callback routine. Iprt uses the class service callback to transfer data from the input data buffer of Iprt to the data buffer of the class driver.
Keyboard write buffer request and mouse write buffer request. 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. Keyboard start information request and mouse start information request.
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.
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