Hi, Petr Vorel <petr.vorel@xxxxxxxxx> writes: >> > [1] https://github.com/linux-sunxi/sunxi-livesuite/blob/master/awusb/awusb.c > >> 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. looks like you could implement that entirely in userspace with libusb ;-) -- balbi