How to configure Alsa for snd_ca0106 chip to get 5.1 sound?

Sorry for asking this question again.
Now my SuSe is playing 2.1 sound. I don’t know how to configure Alsa to get 5.1. I found the chip of my sound card was snd_ca0106 on alsa-project website. Please help me. My OpenSuSe is just freshly installed.