[Trac #755] Get wrong keycode while press two button at the same time.

[Zarro Boogs per Child]

#755: Get wrong keycode while press two button at the same time.
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 Reporter:  chiaying.lin  |       Owner:  ted.juan
     Type:  defect        |      Status:  new     
 Priority:  normal        |   Milestone:  BTest-3 
Component:  hardware      |    Keywords:          
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 Machine:B1[[BR]]
 Image:231[[BR]]
 Separate buttons on OLPC as four component.[[BR]]
 1-->Gamepad button( gamepad up, gamepad down, gamepad left, gamepad right,
 game triangle, game X, game square, game circle)[[BR]]
 2-->Backlight button.[[BR]]
 3-->Power button.[[BR]]
 4-->Buttons on keyboard.[[BR]]
 I had separate buttons as 4 component.[[BR]]
 Press one button from one component and press one button from other
 component.[[BR]]
 It will duplicated this issue.[[BR]]
 Component 3->power button. Only several buttons(like Fn , backlight). +
 power button can duplicated this issue.[[BR]]

 Duplicated procedure:[[BR]]
 1. Enter command mode.[[BR]]
 2. Execute showkey(attached file).[[BR]]
 3. Press backlight button.[[BR]]
 4. It show keycode 227 press/release.[[BR]]
 5. Press game square button.[[BR]]
 6. It show keycode 77 press/release.[[BR]]
 7. Press backlight+game square button.[[BR]]
 8. It show following result.-->problem [[BR]]

 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 keycode 227 press
 keycode  77 press
 '''keycode   0 press
 keycode   1 release'''
 keycode  99 release

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Ticket URL: <http://dev.laptop.org/ticket/755>
One Laptop Per Child <http://laptop.org/>