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4bb7783161 Device will have a code 28 in Device Manager.6) The USB device has failed.It is possible that the USB device itself has suffered a hardware failure and is no longer functionalUSB DescriptorsAs this is a "header" to the Interface descriptors, its also feasible to have one configuration using a different transfer mode to that of another configurationBit D7 was used in USB 1.0 to indicate a bus powered device, but this is now done by bMaxPowerso we have go thru this extra step Dim wmi As New ManagementClass("Win32DiskDrive") ' loop thru all of the instancesNote the bDeviceClass, bDeviceSubClass, and bDeviceProtocol values
If the device enumerate successfully, try power-cycling the hub or removing/replacing itDownloads/LinksIf the device is removable, remove the device and then disable/enable from device manager to recover.The USB device is not compatible with Windows.The possible problem descriptions for a USB hub failure in Windows 8 are:The USB hub returned an invalid port status.The USB hub failed a control transfer request.The USB hub failed an interrupt transfer request.The USB hub failed to reset.Solutions1) The USB device is "hung".The USB device may have encountered an internal error and simply stopped functioningIf a device uses any power from the bus, whether it be as a bus powered device or as a self powered device, it must report its power consumption in bMaxPowerSteven EwingMar 13, 2014, 5:52 PM Oops, I think I clicked "answer" twice! bledubdSep 5, 2015, 2:23 PM I goto to number two and it also solved my problem with a Samsung NX3000 cameraMore information The following device classes must implement USB serial numbers: Bluetooth (Class Code 0xE0, SubClass 0x01, Protocol 0x01) Communication (Class Code 0x02) Mass storage (Class Code 0x08) Scanning/imaging (Class Code 0x06) Printing (Class Code 0x07) Host wire adapters and device wire adapters (Class Code 0xE0, SubClass 0x02) USB serial numbers are optional for all other device classesThis is used to select the desired configurationTest Reference Device.Connectivity Testing Device.Connectivity Tests Device.Connectivity Tests USB Serial Number USB Serial Number