[fuse-devel] [PATCH 0/8] MUSE: Userspace backed MTD v3

Richard Weinberger richard at nod.at
Tue Feb 9 11:04:44 EST 2021

----- Ursprüngliche Mail -----
> for example, many existing video applications use mmap() to map the
> device memory to userspace memory. Adding support for mmap() to CUSE
> would allow these apps to work without any modifications with CUSE-based
>   device drivers other than kernel drivers.

So you want to access device memory via CUSE?
We have plenty of mechanisms in Linux to allow userspace accessing device memory.
E.g. /dev/mem, UIO, VFIO.

A simple (but ugly!) approach would be redirecting mmap() requests on CUSE devices to /dev/mem.


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