Hi, On Wed, May 13, 2009 at 03:27:33PM +0800, Yao-Chung Chang wrote: > Dear all > > I've implemented a ps/2 serio driver that uses GPIO (two GPIO pins). Each > > bit is triggered by GPIO interrupt. When in console mode, GPM works > > fine, and I can see the mouse cursor moves correctly. But When entering > > GUI, say QT or microwindows, the following messages occurred: > > Mouse at xxxxx/serio0/input0 lost synchronization, throwing 1 bytes away. > .. > Mouse at xxxxx/serio0/input0 lost synchronization, throwing 1 bytes away. > > Mouse at xxxxx/serio0/input0 lost synchronization, throwing 2 bytes away. > > And the mouse cursor is floating and moves incorrectly. > > What is the criteria that kernel think the mouse packet is lost of sync.? > When interrupts are delayed for too long the krenel thinks that it missed a few bytes and complains. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
