From: Petr Vorel <petr.vorel@gmail.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, linux-sunxi@lists.linux.dev,
linux-sunxi@googlegroups.com
Subject: Re: Mainlining Linux Sunxi SoC AW USB
Date: Sat, 24 Jul 2021 16:22:16 +0200 [thread overview]
Message-ID: <YPwiGB7VnzECN/jg@pevik> (raw)
In-Reply-To: <YPwhAsK/rDkVeK0y@kroah.com>
Hi Greg,
> On Sat, Jul 24, 2021 at 03:41:42PM +0200, Petr Vorel wrote:
> > > Why is this even a driver at all, it looks like you can write a small
> > > userspace program using libusb to do everything it does, right? What
> > > exactly is this driver needed for?
> > I'm sorry for not providing more info at the beginning. This is a driver for
> > host computer (i.e. developers laptop) used by LiveSuit tool [2] to flash Images
> > to the NAND of Allwinner devices. LiveSuit itself [3] is unfortunately provided
> > only in binary form. The only open source code with GPL v2 license is awusb
> > driver. Thus I thought I could ease my life with upstreaming at least the
> > kernel driver. But maybe it's not a good idea. I'm using LiveSuit for flashing
> > Allwinner A31, but it requires quite old distro due libqtgui4. Maybe sunxi folks
> > use something newer nowadays, but I haven't found anything in their wiki.
> Ah, that's not going to be good then. Really, this doesn't seem to need
> to be a driver at all, and the ioctls are really strange so we would
> need to change them anyway before it could be merged. But with no
> access to userspace code, that will be quite difficult, so I would push
> back on allwinner and have them work on resolving this.
Understand, it makes sense. Thanks for your time!
@Sunxi community: am I missing something? Using LiveSuit with old distro chroot
and Xephyr with out-of-tree module isn't fun :(.
Kind regards,
Petr
> thanks,
> greg k-h
next prev parent reply other threads:[~2021-07-24 14:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-24 9:54 Mainlining Linux Sunxi SoC AW USB Petr Vorel
2021-07-24 10:29 ` Greg KH
2021-07-24 13:41 ` Petr Vorel
2021-07-24 14:17 ` Greg KH
2021-07-24 14:22 ` Petr Vorel [this message]
2021-07-24 14:45 ` [linux-sunxi] " Christopher Obbard
2021-07-24 16:27 ` Petr Vorel
2021-07-24 17:04 ` Andre Przywara
2021-07-25 23:31 ` Petr Vorel
2021-07-28 14:16 ` Maxime Ripard
2021-07-24 14:54 ` Jernej Škrabec
2021-07-24 16:46 ` Petr Vorel
2021-07-24 14:49 ` Felipe Balbi
2021-07-24 16:34 ` Petr Vorel
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