Some USB memory sticks not (fully) recognized

[Sascha Hauer]

Hi Christian,

On Mon, Aug 10, 2020 at 01:52:01PM +0200, Christian Eggers wrote:
> On Thursday, 6 August 2020, 16:29:13 CEST, Christian Eggers wrote:
> > Barebox version: 2020.07.0
> > Hardware: i.MX6 ULL with external Microchip USB Hub attached
> > 
> > I got a bug report that some newer USB memory sticks do not work with
> > barebox. While with barebox-2020.01 these devices are not recognized at all,
> > in barebox-2020.07 I get at least some warnings:
> I checked again with an older release of barebox (2019-06). With this version,
> the USB drive is detected:
> 
> > # usb -s
> > usb: USB: scanning bus for devices...
> > usb: Bus 001 Device 001: ID 0000:0000 EHCI Host Controller
> > usb: Bus 001 Device 002: ID 0424:4916 USB4916
> > usb: Bus 001 Device 003: ID 090c:3267 Flash Disk
> > Using index 0 for the new disk
> > usb: Bus 001 Device 004: ID 0424:494a USB2 Controller Hub
> > usb: 4 USB Device(s) found
> > Bus 001 Device 001: ID 0000:0000 EHCI Host Controller
> > Bus 001 Device 002: ID 0424:4916 USB4916
> > Bus 001 Device 003: ID 090c:3267 Flash Disk
> > Bus 001 Device 004: ID 0424:494a USB2 Controller Hub
> 
> Also mounting the drive works fine. So I guess that this problem may have been 
> introduced here:
> 
> b1d9837182 ("usb: Change power-on / scanning timeout handling")

Before guessing further could you verify that exactly this commit breaks
your setup? There are a few more changes in the area that could be the
culprit.

Sascha

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