Abstract: An electronic device includes a housing that encloses a controller and/or other electronic components, a display viewable through a face of the housing that is configured to display an alphanumeric character list, and an input device adjacent the display that is movable by a user to highlight and select respective alphanumeric characters in a displayed character list. To highlight characters within a displayed character list, the input device is rotatable about an axis that is substantially normal to the display and is slidable within a plane that is substantially orthogonal to the axis. In some embodiments, the input device is rotatable and slidable within a plane that is substantially parallel with a plane defined by the housing face. To select a highlighted character, a user depresses the input device.

Abstract: A USB bus-powered device in Suspend state that requires active bus state power levels, but has no data transfer need, may initiate Resume signaling to return a USB bus segment to active state, without transferring any data across the bus. A device driver considers both USB device power needs and data transfer activity in deciding to Globally or Selectively Suspend a bus or bus segment. In particular, upon deciding to Suspend a bonus or bus segment, the device driver queries a USB bus-powered device. If the device will require active bus mode power within a predetermined duration, the device will indicate to the device driver to remain an active mode. In this case, the device driver does not direct the USB host to Suspend the bus.

Abstract: An electronic device includes a housing that encloses a controller and/or other electronic components, a display viewable through a face of the housing that is configured to display an alphanumeric character list, and an input device adjacent the display that is movable by a user to highlight and select respective alphanumeric characters in a displayed character list. To highlight characters within a displayed character list, the input device is rotatable about an axis that is substantially normal to the display and is slidable within a plane that is substantially orthogonal to the axis. In some embodiments, the input device is rotatable and slidable within a plane that is substantially parallel with a plane defined by the housing face. To select a highlighted character, a user depresses the input device.

Abstract: A USB bus-powered device in Suspend state that requires active bus state power levels, but has no data transfer need, may initiate Resume signaling to return a USB bus segment to active state, without transferring any data across the bus. A device driver considers both USB device power needs and data transfer activity in deciding to Globally or Selectively Suspend a bus or bus segment. In particular, upon deciding to Suspend a bonus or bus segment, the device driver queries a USB bus-powered device. If the device will require active bus mode power within a predetermined duration, the device will indicate to the device driver to remain an active mode. In this case, the device driver does not direct the USB host to Suspend the bus.