On Wed, 13 Nov 2019 15:00:23 -0600, Eric Sandeen said:
> On 11/13/19 2:17 AM, Namjae Jeon wrote:
> > This adds the latest Samsung exfat driver to fs/exfat. This is an
> > implementation of the Microsoft exFAT specification. Previous versions
> > of this shipped with millions of Android phones, an a random previous
> > snaphot has been merged in drivers/staging/.
> >
> > Compared to the sdfat driver shipped on the phones the following changes
> > have been made:
> >
> >  - the support for vfat has been removed as that is already supported
> >    by fs/fat
> >  - driver has been renamed to exfat
> >  - the code has been refactored and clean up to fully integrate into
> >    the upstream Linux version and follow the Linux coding style
> >  - metadata operations like create, lookup and readdir have been further
> >    optimized
> >  - various major and minor bugs have been fixed
> >
> > We plan to treat this version as the future upstream for the code base
> > once merged, and all new features and bug fixes will go upstream first.
>
> Apologies if I should know this already, but where are the userspace tools
> for exfat located?

The upstream for that is https://github.com/relan/exfat

On Fedora, they're available in the rpmfusion RPM 'exfat-utils', not sure where
Ubuntu or other distros put it.