Um ~ ask a question.

I find my B4 OLPC whose mouse can not smooth moving on sugar.

The issue only happens on Glidesensor(GS) but not on Pentable(PT).

I find resistive can normally respond the mouse address but capacitive is hard.

And catch the driver “/dev/input/mouse0”, it has a little of response when move 
the mouse. 

At first I think maybe ALPS touchpad device is broken.

Then do mouse test on OFW.

Find the touchpad device can normally respond on GS test and PT test.

 

Now I judge that the device is not broken and the question happens on other HW 
devices.

Somebody can give me ideal to fine which one device has wrong.

I am not sure what different between driver and OFW test.

Want to solve the question but only can measure waveform just that.

 

Thanks.

 

Luna

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