SPI interface on uClinux

I would like to use the SPI master bus on my project.

I would like to know if the SPI bus is working on uClinux NIOS system?

Who's got it working?

Has someone got a application working on that?

So i can deside if i am going to use the SPI bus.

I am looking a example source code of a applicatgion running on a uClinux NIOS system.

tnx