> This driver allows userspace to access the data processing > FPGAs on the OVRO CARMA board. It has two modes of operation: > > 1) random access > > This allows users to poke any DATA-FPGA registers by using mmap to map > the address region directly into their memory map.
I needed something similar, but used pread() and pwrite() to request the transfers. While this does require a system call per transfer, it allows the driver to use dma (if available) to speed up the request. In my case doing single cycle transfers would be too slow. David _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev