Pad keeps resetting to PSXPAD_KEYTYPE_ANALOG1

[plampix]

Hi,

First of all, thanks for the effort of creating the library!

I've got a problem with the analog buttons on my original PS2 controller(s). The first time getKeyState is called, lbResponse[1] contains 0x79, and vType is set to PSXPAD_KEYTYPE_ANALOG2. But after the first reading, lbResponse[1] contains 0x73, vType is set to PSXPAD_KEYTYPE_ANALOG1, and my analog triggers stop working.

Have you seen this kind of behaviour before? I've tried several official PS2 controllers, and they all act the same.