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JulianLiu / odroid-xu4-kernel

The kernel snap for odroid-xu4 board
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usb usb2-port1: disabled by hub (EMI?), re-enabling... #3

Open deminngi opened 6 years ago

deminngi commented 6 years ago

Hi Julian,

If I try to reboot the Odroid box I get sometime this error: usb usb2-port1: disabled by hub (EMI?), re-enabling...

core 16-2.29.3 3443 canonical core odroid-xu4 16-0.1 3 julianliu gadget odroidxu4-kernel 4.14.7 8 julianliu kernel

I have a ThinkPad keyboard with integrated mousepad connected to the USB 2.0 port

/*

  • EM interference sometimes causes badly
  • shielded USB devices to be shutdown by
  • the hub, this hack enables them again.
  • Works at least with mouse driver. */ if (!(portstatus & USB_PORT_STAT_ENABLE) && !connect_change && hdev->children[i-1]) { dev_err (hub_dev, "port %i " "disabled by hub (EMI?), " "re-enabling...\n", i); connect_change = 1; }
JulianLiu commented 6 years ago

Hi giminni, Did you see same symptom with original odroid 4.14 kernel (with their ubuntu mate)? https://github.com/hardkernel/linux/tree/odroidxu4-4.14.y