Re: [PATCH v10] i2c: virtio: add a virtio i2c frontend driver

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> You can fine Viresh's vhost-user implementation at
> https://lore.kernel.org/qemu-devel/cover.1617278395.git.viresh.kumar@xxxxxxxxxx/t/#m3b5044bad9769b170f505e63bd081eb27cef8db2

It looks OK so far; yet, it is not complete. But it might be bearable
in the end.

> As you say, it does get a bit clumsy, but I think there is also a good argument
> to be made that the clumsiness is based on the host Linux user interface
> more than the on the requirements of the physical interface,
> and that should not have to be reflected in the virtio specification.

Makes sense to me.

> Right, this one has come up before as well: the preliminary result
> was to assume that this probably won't be needed, but would be easy
> enough to add later if necessary.

If adding support incrementally works for such an interface, this makes
sense as well.

So, where are we? As I understand, this v10 does not support I2C
transactions (or I2C_RDWR as you said). But you want to support all
clients. So, this doesn't match, or?

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