Hi Krzysztof, Today I tried to compile the latest kernel for Odroid xu4. using exynos_defconfig I build and loaded the kernel. but to my surprise usb 3.0 device and missing. odroid login: root Password: Last login: Wed Jul 19 14:01:44 UTC 2017 on ttySAC2 Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.13.0-rc1-xu4ml-27846-g74cbd96 armv7l) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage root@odroid:~# lsusb Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 0603:0002 Novatek Microelectronics Corp. Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@odroid:~# lsusb -t /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=exynos-ohci/3p, 12M |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=exynos-ehci/3p, 480M Full dmesg can be found on blow link. https://pastebin.com/K3xfPCPe The reason for failed is below. [ 7.187096] usb usb4-port1: connect-debounce failed I tried to debug this but failed to find the root cause. Nothing is connected to the UBS 3.0 port for the failure to cause. If I load old kernel it seen to work correctly. If you provoid some input I will give this a try. Best Regards -Anand -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
