fastboot device not recognized when in a USB3 port

[howientc]

I'm unable to use fastboot to access a device when it's plugged into a USB3 port in my host computer. If I plug my device (a C.H.I.P. computer, fastboot ids=1f3a:1010), into a USB2 hub that goes into the USB3 port, all works fine.

Basically, my host (OSX, though I've seen it with Windows too), doesn't see the device when it's in fastboot mode on a USB3 port. It does, however, see it when in FEL mode. I've tried on many host computers, and narrowed it down to a USB3 port issue.

Perhaps this is related: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759611#10

Any ideas?

[jwrdegoede]

Hi,

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759611#10

Certainly looks related, have you tried building your android tools with this patch ? If the device does show up in lsusb when connected to a usb-3 port in fastboot mode, I would try that first.

If the device does not show up in lsusb the problem lies elsewhere.

Regards,

Hans

[howientc]

Thanks, Hans,

The problem is with the device not showing up. I'm actually not using android tools, so I think the problem is either on the device site (u-boot), or the OS is glitching in not recognizing it. Happens with USB 3 on Mac and Windows. Not sure about linux as my machine is USB2.

Best,
Howie

[howientc]

On OSX, this shows up in the kernel logs:
IOUSBHostDevice@fa130000: IOUSBHostDevice::getDescriptorGated: compliance
violation: USB 2.0 9.3.5: device returned more than wLength data
AppleUSB20HubPort@fa130000: AppleUSBHostPort::disconnect: persistent
enumeration failures