Hi, I have the following device that is found durng boot time: [ 1.485763] usb 2-3: new SuperSpeed USB device number 2 using xhci_hcd [ 1.499526] usb 2-3: New USB device found, idVendor=05ac, idProduct=8406 [ 1.499527] usb 2-3: New USB device strings: Mfr=3, Product=4, SerialNumber=5 [ 1.499527] usb 2-3: Product: Card Reader [ 1.499528] usb 2-3: Manufacturer: Apple [ 1.499528] usb 2-3: SerialNumber: 000000000820 ... [ 1.731095] usb-storage 2-3:1.0: USB Mass Storage device detected [ 1.731801] scsi host1: usb-storage 2-3:1.0 The device works flawless. lsusb reports the device However, after the first suspend/resume cycle, I get the following log entry. [ 163.753816] usb 2-3: USB disconnect, device number 2 lsusb reports the device as removed. The USB hub is still present. The device is built-in to the hardware and you cannot physically disconnect the device. After subsequent suspend/resumes, the device will stay removed. Only after reboot, the device appears again. Unloading/loading of usb-storage.ko does not work. Is there a way to reset the hub or to force a scanning the ports for potentially attached devices? Thanks Stephan -- 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