The device’s contact reporting capability is defined by the maximum number of concurrent surface contacts it can report.
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Usb touchpad uk windows#
The device capabilities feature report is requested by the host of the Windows Precision Touchpad, to retrieve information about the device’s contact reporting capabilities and the device button type. The following sections provide more information about the reports contained in the top-level collection for the Windows Precision Touchpad.
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For an example of the mandatory input report, see Sample Report Descriptors.Īn optional (but highly recommended) feature report may be implemented to obtain latency mode hints from the host, in order to achieve the required power consumption on USB devices in sleep mode. The collection should support two feature reports: one that allows the host to obtain device capabilities, and another report to obtain the device’s certification status. The Windows Precision Touchpad collection serves the purpose of providing rich multi-contact and button reporting to the host, as well as device information that is related to those reports. This topic discusses the top-level collection of a Windows Precision Touchpad, and explains how the collection provides HID-compliant touchpad reporting to the Windows host.Ī Windows Precision Touchpad device can use the HID protocol to provide a top-level collection that appears as a digitizer/touchpad (x0D, Usage 0x05).