The really problem was the Kernel module on the Pi. At the time of my post, nobody could answer and I switched to I2C, but there was a similar problem in the kernel module of the Pi. After some hot discussions on the kernel mailing lists, we found a workaround and included it in the kernel module. T...

I've a problem receiving data on a RasPi using wiringPi. I think it's not wiringPi specific, because wiringPi just use ioctl as another SPI examples do. I tried a lot and now I'm out of ideas, you guys may have another Idea what's happening there. Background: A STM32 and a RasPi need data exchange. ...