Tomas Van Roose

No way to access DMA interrupt source

1

When configuring a DMA request, there are 5 different interrupts we can enable. However, inside the [`interrupt`](https://docs.rs/stm32f4xx-hal/0.9.0/stm32f4xx_hal/enum.interrupt.html) enum fo the crate, there is only one variant for each DMA-Stream combo....