On Mon, 2014-12-15 at 22:20 +0000, Neil Williams wrote: > # lsmod|grep hci > ohci_platform 4082 0 > ehci_platform 4562 0 > ohci_hcd 37631 1 ohci_platform > ehci_hcd 64429 1 ehci_platform > ahci_sunxi 2652 0 > libahci_platform 4679 4 ahci_sunxi > libahci 23077 1 libahci_platform > libata 161809 3 libahci,libahci_platform,ahci_sunxi Do you have phy-sun4i-usb loaded? Might it be missing from the initrd? Ian.