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

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Message-ID: <b2424246-d42b-d0bc-8951-8cefdf5b681d@studio.unibo.it>
Date:   Tue, 9 Feb 2021 16:56:28 +0100
From:   Luca Risolia <luca.risolia@...dio.unibo.it>
To:     Richard Weinberger <richard@....at>
Cc:     Miklos Szeredi <miklos@...redi.hu>,
        Vignesh Raghavendra <vigneshr@...com>,
        fuse-devel <fuse-devel@...ts.sourceforge.net>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        linux-mtd <linux-mtd@...ts.infradead.org>,
        Ron Minnich <rminnich@...gle.com>, sven <sven@...fation.org>
Subject: Re: [fuse-devel] [PATCH 0/8] MUSE: Userspace backed MTD v3


On 09/02/21 16:41, Richard Weinberger wrote:
> I wonder about the use case.

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.