Control LinuxMCE with Gyro Remote
From LinuxMCE wiki
When the system starts with UI2 you will see the gallery art first.
You can navigate UI2 using either a keyboard/mouse, a Windows XP MC remote (with a Tira, IRTrans, USB-UIRT or other compatible infrared receiver), or (for best results) a special gyro-based remote.
Press the 'start' button on the MC remote, the F7 on the keyboard, or the middle 'menu' button on the gyro remote to bring up the main menu. Use the arrows (or the mouse) to highlight the option you want (or move the gyro remote in the air). Click the 'OK' or 'left mouse' button to select.
When there are lists of content, such as when you chose 'Media', 'Audio', you can make the list rotate in 3D by arrowing past the top and bottom of the cube (or move your mouse or gyro remote past the top and bottom of the list).
When media is playing, you can use the normal keys on the I/T remote to control the media playback and volume. Or press F6 or the 'media' button on the gyro remote, and then move left and right to adjust playback speed, or move up and down to skip through chapters/tracks/channels/songs depending on the type of media.
With the left and right movement you have both "absolute" and "relative" movement possible.
"Absolute" means holding the button down while you move left and right (this is quite useful with the gyro remote). Press the left button, and if you move your hand all the way to the left you come to the beginning of your media. Move all the way to the right and you are at the end.
Tap and release the button -- when you then move left and right you are in "relative" (or "jog shuttle") mode. Move slowly to the right for slow motion forward. Move further to the right for 400x forward. Move back to the left to rewind, and so on.
While you are watching LiveTV or a DVD you can use the absolute function of the left gyro button and move up and down to scroll through a tumbling menu of either channels (or chapters, depending on the Media being displayed).
Press F8, or the 'ambiance' button on the gyro remote, to control the 'ambiance' (the lights and volume). Move up and down to adjust the light level, left and right to adjust the volume level. Like with media playback, holding the button down while you move is 'absolute' mode -- all the way left is volume mute, right is full blast. Tap and release for relative mode -- the further you move to the left the faster the volume lowers.
With a mouse, the right button is the cancel/off; with the gyro remote it is marked 'X'. If you have a menu on the screen it makes the menu disappear. When there's no menu on screen, tap to stop whatever media you're playing. Press and hold to turn off the TV or to power down the system.
Thus with UI2 you can control the entire system using only the 3 buttons on the gyro remote (plus the ok and cancel buttons).