Hello Andre Loddenkemper ,
NXP Serial RapidIO user space driver is composed of Linux UIO driver in Linux kernel space and SRIO driver/application in Linux user space. There are dma and srio UIO drivers which map dma/srio registers and SRIO
window to linux user space for user space driver usage. User space dma and srio driver provide driver interfaces for
application, and timer driver provide means to measure the performance. Application can use driver interface to accomplish the final srio function. Currently, the srio driver support two rapidio ports, and the dma driver supports two controllers and eight channels based on basic direct mode and basic chain mode .
The serial RapidIO interface provides a RapidIO port to communicate with other RapidIO devices. Please refer to the userspace driver in usdpaa/git-r4/git/src/srio/srio_driver.c.
Linux Kernel driver in drivers/uio/fsl_srio_uio.c.
Have a great day,
TIC
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