Peter, On Sat, 24 Jul 2021 at 15:22, Petr Vorel <petr.vorel@xxxxxxxxx> wrote: > > 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 :(. Suggest you take a look at sunxi-tools - specifically the sunxi-fel tool. This is a libusb-based userland tool to talk to these devices. I'm not sure if it supports flashing to nand on A31 - never tried it - but have used it to flash to eMMC and SPI flash on their other chips. hth, Chris > > Kind regards, > Petr > > > thanks, > > > greg k-h > > -- > You received this message because you are subscribed to the Google Groups "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/YPwiGB7VnzECN/jg%40pevik.
