hi, while reading this [1] message i recognized that i also have the same usb power problems... [1] = http://linuxtv.org/pipermail/linux-dvb/2005-December/007223.html Today I used the dvb-t box as the only usb device but no luck, same power problems: usb 1-1: USB disconnect, address 2 usbcore: registered new driver dvb_usb_dtt200u usb 1-2: new full speed USB device using uhci_hcd and address 3 dvb-usb: found a 'WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)' in cold state, will try to load a firmware dvb-usb: downloading firmware from file 'dvb-usb-dtt200u-01.fw' usb 1-2: USB disconnect, address 3 dvb-usb: generic DVB-USB module successfully deinitialized and disconnected. usb 1-2: new full speed USB device using uhci_hcd and address 4 dvb-usb: found a 'WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)' in warm state. dvb-usb: will use the device's hardware PID filter (table count: 15). DVB: registering new adapter (WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)). DVB: registering frontend 0 (WideView USB DVB-T)... dvb-usb: schedule remote query interval to 300 msecs. dvb-usb: WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U) successfully initialized and connected. dvb-usb: recv bulk message failed: -110 hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... usb 1-2: USB disconnect, address 4 dvb-usb: bulk message failed: -19 (1/0) dvb-usb: WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U) successfully deinitialized and disconnected. usb 1-2: new full speed USB device using uhci_hcd and address 5 dvb-usb: found a 'WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)' in warm state. dvb-usb: will use the device's hardware PID filter (table count: 15). DVB: registering new adapter (WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)). DVB: registering frontend 0 (WideView USB DVB-T)... dvb-usb: schedule remote query interval to 300 msecs. dvb-usb: WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U) successfully initialized and connected. Unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: c012cc85 *pde = 00000000 Oops: 0002 [#1] Modules linked in: dvb_usb_dtt200u dvb_usb dvb_core firmware_class i2c_core dvb_pll wlan_wep wlan_scan_sta ath_pci ath_rate_onoe wlan ath_hal CPU: 0 EIP: 0060:[<c012cc85>] Tainted: P VLI EFLAGS: 00010046 (2.6.14-gentoo-r5-ne0n) EIP is at add_wait_queue+0x15/0x30 eax: c7dd7638 ebx: 00000000 ecx: c43c4018 edx: c43c400c esi: 00000246 edi: 00000000 ebp: c6eebf98 esp: c6eebf00 ds: 007b es: 007b ss: 0068 Process kaffeine (pid: 14357, threadinfo=c6eea000 task=cedbfab0) Stack: c7dd7608 c5545720 d137438e c5545720 c7dd7638 c6eebf98 00000145 c45a1de8 c5545720 00000001 c016f1a1 c5545720 c6eebf98 c45a1de0 000001f5 c6eebf5c c6eebf60 c016f21c 00000001 c45a1de8 c6eebf5c c6eebf60 c6eea000 c6eebf98 Call Trace: [<d137438e>] dvb_dvr_poll+0x9e/0xc0 [dvb_core] [<c016f1a1>] do_pollfd+0x91/0xa0 [<c016f21c>] do_poll+0x6c/0xe0 [<c016f472>] sys_poll+0x1e2/0x240 [<c016e7d0>] __pollwait+0x0/0xd0 [<c0102d19>] syscall_call+0x7/0xb Code: e4 6a 47 c0 e8 d1 87 2d 00 eb d5 90 90 90 90 90 90 90 90 90 90 90 83 ec 08 89 1c 24 89 74 24 04 83 22 fe 9c 5e fa 8b 18 8d 4a 0c <89> 4b 04 89 5a 0c 89 41 04 89 08 56 9d 8b 1c 24 8b 74 24 04 83 <1>Unable to handle kernel paging request at virtual address ff666666 printing eip: c0406868 *pde = 00000000 Oops: 0002 [#2] Modules linked in: dvb_usb_dtt200u dvb_usb dvb_core firmware_class i2c_core dvb_pll wlan_wep wlan_scan_sta ath_pci ath_rate_onoe wlan ath_hal CPU: 0 EIP: 0060:[<c0406868>] Tainted: P VLI EFLAGS: 00010002 (2.6.14-gentoo-r5-ne0n) EIP is at __down_interruptible+0x58/0xf2 eax: ff666666 ebx: d0835070 ecx: ca757f20 edx: ca756000 esi: ca756000 edi: 00000246 ebp: cb4b75c0 esp: ca757f0c ds: 007b es: 007b ss: 0068 Process kaffeine (pid: 14351, threadinfo=ca756000 task=cb4b75c0) Stack: d0835078 00000000 00000001 cb4b75c0 c0115ba0 d0835078 00000000 c13bd55c c13bd55c c13bd55c d0835000 cf651784 c7fe5c24 c7434b80 c0405423 00000000 ca756000 d1374630 cffe3ae0 00000008 cffe3ae0 c015c2f2 cf651784 d0835000 Call Trace: [<c0115ba0>] default_wake_function+0x0/0x20 [<c0405423>] __down_failed_interruptible+0x7/0xc [<d1374630>] .text.lock.dmxdev+0xb1/0x191 [dvb_core] [<c015c2f2>] __fput+0x152/0x190 [<c015a7d6>] filp_close+0x46/0x90 [<c015a873>] sys_close+0x53/0x70 [<c0102d19>] syscall_call+0x7/0xb Code: 24 0c 89 44 24 10 c7 45 00 01 00 00 00 9c 5f fa 83 4c 24 08 01 8d 73 08 8d 4c 24 14 89 34 24 8b 46 04 89 74 24 14 89 4e 04 89 d6 <89> 08 ff 43 04 89 44 24 18 eb 18 c7 43 04 01 00 00 00 57 9d e8 <1>Unable to handle kernel paging request at virtual address 6f682e82 printing eip: d137ac8d *pde = 00000000 Oops: 0000 [#3] Modules linked in: dvb_usb_dtt200u dvb_usb dvb_core firmware_class i2c_core dvb_pll wlan_wep wlan_scan_sta ath_pci ath_rate_onoe wlan ath_hal CPU: 0 EIP: 0060:[<d137ac8d>] Tainted: P VLI EFLAGS: 00010292 (2.6.14-gentoo-r5-ne0n) EIP is at dvb_frontend_release+0x1d/0x70 [dvb_core] eax: 6f682e76 ebx: cf39a2c0 ecx: 00000000 edx: c7fe5294 esi: cffe3ae0 edi: c7fe5294 ebp: cf39a2c0 esp: c7311f4c ds: 007b es: 007b ss: 0068 Process kaffeine (pid: 14348, threadinfo=c7310000 task=c068d050) Stack: c0530614 00000008 00000008 cffe3ae0 c7fe5294 c015c2f2 c7fe5294 cf39a2c0 00000000 00000000 c7fe5294 c0c904d0 cf39a2c0 caeaa200 00000000 c7310000 c015a7d6 cf39a2c0 caeaa200 caeaa200 cf39a2c0 bfcf3f2c c015a873 cf39a2c0 Call Trace: [<c015c2f2>] __fput+0x152/0x190 [<c015a7d6>] filp_close+0x46/0x90 [<c015a873>] sys_close+0x53/0x70 [<c0102d19>] syscall_call+0x7/0xb Code: eb c1 8d b6 00 00 00 00 8d bf 00 00 00 00 83 ec 14 89 5c 24 08 8b 5c 24 1c 89 7c 24 10 8b 7c 24 18 89 74 24 0c 8b 43 74 8b 40 28 <8b> 70 0c a1 90 41 38 d1 85 c0 75 2d f6 43 18 03 74 0b a1 00 3e <3>dvb-usb: recv bulk message failed: -110 Here is the lsusb -v ouput: Bus 001 Device 003: ID 14aa:0301 AVerMedia (again) or C&E AVermedia/Yakumo/Hama/Typhoon DVB-T USB2.0 (warm) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x14aa AVerMedia (again) or C&E idProduct 0x0301 AVermedia/Yakumo/Hama/Typhoon DVB-T USB2.0 (warm) bcdDevice 10.01 iManufacturer 1 DVB-T Receiver iProduct 2 DTV USB2.0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 Remote Wakeup MaxPower 450mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x03ac 1x 940 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Bus 001 Device 001: ID 0000:0000 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0000 idProduct 0x0000 bcdDevice 2.06 iManufacturer 3 Linux 2.6.14-gentoo-r5-ne0n uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:07.2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 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 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x08 PortPwrCtrlMask 0xa8 Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0103 power enable connect Is there anything that can be done against these power/hotplug problems? i will also follow the Freecom DVB-T USB Stick Kernel OOps thread... :) Steffen
