USB not working on TL-WDR4900 v1.x
Username: Nikolay Stoyanov
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=727
USB ports are empty but hub is deteched periodically.
dmesg | grep -i usb
[ 0.029483] usbcore: registered new interface driver usbfs
[ 0.029537] usbcore: registered new interface driver hub
[ 0.029580] usbcore: registered new device driver usb
[ 2.075954] ehci_hcd: USB 2.0 ‘Enhanced’ Host Controller (EHCI) Driver
[ 2.104850] fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
[ 2.138024] fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00
[ 2.144048] hub 1-0:1.0: USB hub found
[ 2.535450] usb 1-1: new high-speed USB device number 2 using fsl-ehci
[ 2.728493] hub 1-1:1.0: USB hub found
[ 3.511480] usb 1-1: USB disconnect, device number 2
[ 3.814034] usb 1-1: new high-speed USB device number 3 using fsl-ehci
[ 3.952117] hub 1-1:1.0: USB hub found
[ 4.484403] usb 1-1: USB disconnect, device number 3
[ 4.730021] usb 1-1: new high-speed USB device number 4 using fsl-ehci
[ 4.868111] hub 1-1:1.0: USB hub found
[ 5.265649] usb 1-1: USB disconnect, device number 4
[ 5.510021] usb 1-1: new high-speed USB device number 5 using fsl-ehci
[ 6.098025] usb 1-1: device not accepting address 5, error -71
[ 6.398018] usb 1-1: new high-speed USB device number 7 using fsl-ehci
[ 986.577885] usb 1-1: USB disconnect, device number 124
[ 986.821924] usb 1-1: new high-speed USB device number 125 using fsl-ehci
[ 986.960029] hub 1-1:1.0: USB hub found
[ 991.933221] usb 1-1: USB disconnect, device number 125
[ 992.177825] usb 1-1: new high-speed USB device number 126 using fsl-ehci
[ 992.315980] hub 1-1:1.0: USB hub found
[ 1001.763764] usb 1-1: USB disconnect, device number 126
[ 1002.009660] usb 1-1: new high-speed USB device number 127 using fsl-ehci
[ 1002.159774] hub 1-1:1.0: USB hub found
[ 1006.033730] usb 1-1: USB disconnect, device number 127
[ 1006.281597] usb 1-1: new high-speed USB device number 2 using fsl-ehci
[ 1006.419736] hub 1-1:1.0: USB hub found
[ 1009.824073] usb 1-1: USB disconnect, device number 2
[ 1010.076110] usb 1-1: new high-speed USB device number 3 using fsl-ehci
cat /sys/kernel/debug/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 1, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 4.04
S: Manufacturer=Linux 4.4.61 ehci_hcd
S: Product=Freescale On-Chip EHCI Host Controller
S: SerialNumber=fsl-ehci.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 88 Spd=480 MxCh= 4
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=05e3 ProdID=0608 Rev=85.36
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
lsusb -v
Bus 001 Device 090: ID 05e3:0608 Genesys Logic, Inc. Hub
Device Descriptor:
bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x05e3 Genesys Logic, Inc. idProduct 0x0608 Hub bcdDevice 85.36 iManufacturer 0 iProduct 1 USB2.0 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 12
Hub Descriptor:
bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00e9 Per-port power switching Per-port overcurrent protection TT think time 32 FS bits Port indicators bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power Port 4: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 bNumConfigurations 1
Device Status: 0×0001
Self Powered
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0002 2.0 root hub bcdDevice 4.04 iManufacturer 3 Linux 4.4.61 ehci_hcd iProduct 2 Freescale On-Chip EHCI Host Controller iSerial 1 fsl-ehci.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12
Hub Descriptor:
bLength 9 bDescriptorType 41 nNbrPorts 1 wHubCharacteristic 0x0009 Per-port power switching Per-port overcurrent protection TT think time 8 FS bits bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Device Status: 0×0001
Self Powered