dvbdev: DVB: registering new adapter (Hauppauge Mercury)
prism2_usb 3-1:0.46 (unnamed net_device) (uninitialized): prism2_usb: Checking for firmware prism2_ru.fw
usb 2-1: selecting invalid altsetting 1
usb 3-1: Direct firmware load for prism2_ru.fw failed with error -2
set interface failed
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 15200 Comm: kworker/1:7 Not tainted 5.1.0-rc5-319617-gd34f951 #4
prism2_usb 3-1:0.46 (unnamed net_device) (uninitialized): prism2_usb: Firmware not available, but not essential
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
prism2_usb 3-1:0.46 (unnamed net_device) (uninitialized): prism2_usb: can continue to use card anyway.
Call Trace:
usb 5-1: USB disconnect, device number 6
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 assign_lock_key kernel/locking/lockdep.c:786 [inline]
 register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095
 __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582
 lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
 __mutex_lock_common kernel/locking/mutex.c:925 [inline]
 __mutex_lock+0xfe/0x12b0 kernel/locking/mutex.c:1072
 mxl111sf_ctrl_msg+0xc7/0x250 drivers/media/usb/dvb-usb-v2/mxl111sf.c:69
 mxl111sf_write_reg+0x9f/0x160 drivers/media/usb/dvb-usb-v2/mxl111sf.c:126
 mxl1x1sf_soft_reset+0x70/0x190 drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c:56
 mxl111sf_lgdt3305_frontend_attach.constprop.0+0x252/0x7c0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:450
 mxl111sf_frontend_attach_mercury+0x27/0xa0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:1007
 dvb_usbv2_adapter_frontend_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:654 [inline]
 dvb_usbv2_adapter_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:817 [inline]
 dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:878 [inline]
 dvb_usbv2_probe.cold+0x2170/0x29f6 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:993
 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
 hub_port_connect drivers/usb/core/hub.c:5089 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
 port_event drivers/usb/core/hub.c:5350 [inline]
 hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
usb 2-1: dvb_usb_v2: usb_bulk_msg() failed=-22
error writing reg: 0xff, val: 0x00
dvb_usb_mxl111sf: probe of 2-1:83.0 failed with error -22
prism2_usb 3-1:0.46 (unnamed net_device) (uninitialized): Fatal, failed to submit RX URB, result=-2
usb 2-1: USB disconnect, device number 21
prism2_usb 3-1:0.46 (unnamed net_device) (uninitialized): hfa384x_drvr_start() failed,result=-2
usb 1-1: config 0 has an invalid interface number: 205 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=14f7, idProduct=0500, bcdDevice=de.42
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: new full-speed USB device number 4 using dummy_hcd
usb 6-1: new high-speed USB device number 48 using dummy_hcd
usb 1-1: config 0 descriptor??
usb 1-1: can't set config #0, error -71
usb 1-1: USB disconnect, device number 112
usb 6-1: Using ep0 maxpacket: 8
usb 2-1: new high-speed USB device number 22 using dummy_hcd
usb 5-1: new high-speed USB device number 7 using dummy_hcd
usb 6-1: config 0 has an invalid interface number: 90 but max is 0
usb 4-1: config 0 has an invalid interface number: 132 but max is 0
usb 4-1: config 0 has no interface number 0
usb 6-1: config 0 has no interface number 0
usb 4-1: New USB device found, idVendor=10c4, idProduct=0f91, bcdDevice=cc.ab
usb 6-1: New USB device found, idVendor=2040, idProduct=2400, bcdDevice=e5.67
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: new high-speed USB device number 113 using dummy_hcd
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: config 0 descriptor??
usb 6-1: config 0 descriptor??
cp210x 4-1:0.132: cp210x converter detected
pvrusb2: Hardware description: WinTV PVR USB2 Model 24xxx
usb 5-1: Using ep0 maxpacket: 8
usb 2-1: Using ep0 maxpacket: 8
usb 6-1: Direct firmware load for v4l-pvrusb2-24xxx-01.fw failed with error -2
usb 6-1: USB disconnect, device number 48
pvrusb2: ***WARNING*** Device fx2 controller firmware seems to be missing.
pvrusb2: Did you install the pvrusb2 firmware files in their proper location?
pvrusb2: request_firmware unable to locate fx2 controller file v4l-pvrusb2-24xxx-01.fw
pvrusb2: Failure uploading firmware1
pvrusb2: Device initialization was not successful.
pvrusb2: Giving up since device microcontroller firmware appears to be missing.
pvrusb2: Device being rendered inoperable
cp210x 4-1:0.132: failed to get vendor val 0x370b size 1: -71
cp210x 4-1:0.132: querying part number failed
usb 5-1: config 0 has an invalid interface number: 103 but max is 0
usb 5-1: config 0 has no interface number 0
usb 5-1: New USB device found, idVendor=0c45, idProduct=8001, bcdDevice=d3.55
usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 5-1: config 0 descriptor??
usb 1-1: Using ep0 maxpacket: 8
usb 2-1: config index 0 descriptor too short (expected 17426, got 18)
usb 2-1: config 83 has too many interfaces: 47, using maximum allowed: 32
cp210x ttyUSB0: failed get req 0x4 size 2 status: -71
usb 2-1: config 83 has 1 interface, different from the descriptor's value: 47
cp210x: probe of ttyUSB0 failed with error -71
usb 2-1: too many endpoints for config 83 interface 0 altsetting 0: 239, using maximum allowed: 30
gspca_main: sn9c2028-2.14.0 probing 0c45:8001
usb 2-1: config 83 interface 0 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 239
usb 4-1: USB disconnect, device number 4
usb 2-1: New USB device found, idVendor=2040, idProduct=d8d3, bcdDevice=a8.3e
cp210x 4-1:0.132: device disconnected
usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: USB disconnect, device number 115
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 6-1: new high-speed USB device number 49 using dummy_hcd
usb 2-1: string descriptor 0 read error: -71
usb 2-1: dvb_usb_v2: found a 'Hauppauge Mercury' in warm state
usb 2-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
dvbdev: DVB: registering new adapter (Hauppauge Mercury)
usb 2-1: selecting invalid altsetting 1
set interface failed
usb 2-1: dvb_usb_v2: usb_bulk_msg() failed=-22
error writing reg: 0xff, val: 0x00
dvb_usb_mxl111sf: probe of 2-1:83.0 failed with error -22
usb 2-1: USB disconnect, device number 22
gspca_sn9c2028: read1 error -71
sn9c2028: probe of 5-1:0.103 failed with error -71
usb 5-1: USB disconnect, device number 7
usb 6-1: device descriptor read/64, error 18
smscufx: Failed to write register index 0x00003008 with value 0x00000001
smscufx: ufx_lite_reset error writing 0x3008
smscufx: error -71 resetting device
smscufx: probe of 1-1:0.138 failed with error -71
usb 1-1: USB disconnect, device number 113
usb 4-1: new full-speed USB device number 5 using dummy_hcd
usb 3-1: new high-speed USB device number 116 using dummy_hcd
usb 2-1: new high-speed USB device number 23 using dummy_hcd
usb 6-1: device descriptor read/64, error 18
usb 3-1: Using ep0 maxpacket: 8
usb 2-1: Using ep0 maxpacket: 32
usb 4-1: config 0 has an invalid interface number: 132 but max is 0
usb 4-1: config 0 has no interface number 0
usb 3-1: config 0 has an invalid interface number: 79 but max is 0
usb 3-1: config 0 has no interface number 0
usb 3-1: New USB device found, idVendor=041e, idProduct=4038, bcdDevice=71.0d
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: New USB device found, idVendor=10c4, idProduct=0f91, bcdDevice=cc.ab
usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 4-1: config 0 descriptor??
usb 3-1: config 0 descriptor??
usb 6-1: new high-speed USB device number 50 using dummy_hcd
usb 2-1: config 0 has an invalid interface number: 253 but max is 0
usb 2-1: config 0 has no interface number 0
cp210x 4-1:0.132: cp210x converter detected
gspca_main: sq930x-2.14.0 probing 041e:4038
usb 2-1: New USB device found, idVendor=1645, idProduct=0005, bcdDevice=8d.06
usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 5-1: new high-speed USB device number 8 using dummy_hcd
usb 2-1: config 0 descriptor??
cp210x 4-1:0.132: failed to get vendor val 0x370b size 1: -71
cp210x 4-1:0.132: querying part number failed
usb 1-1: new high-speed USB device number 114 using dummy_hcd
cp210x ttyUSB0: failed get req 0x4 size 2 status: -71
cp210x: probe of ttyUSB0 failed with error -71
usb 4-1: USB disconnect, device number 5
cp210x 4-1:0.132: device disconnected
usb 6-1: device descriptor read/64, error 18
usb 5-1: Using ep0 maxpacket: 8
kaweth 2-1:0.253: Firmware present in device.
kaweth 2-1:0.253: Statistics collection: 0
kaweth 2-1:0.253: Multicast filter limit: 0
kaweth 2-1:0.253: MTU: 0
kaweth 2-1:0.253: Read MAC address 00:00:00:00:00:00
usb 5-1: config 0 has an invalid interface number: 103 but max is 0
usb 5-1: config 0 has no interface number 0
usb 5-1: New USB device found, idVendor=0c45, idProduct=8001, bcdDevice=d3.55
usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 5-1: config 0 descriptor??
usb 1-1: Using ep0 maxpacket: 8
gspca_main: sn9c2028-2.14.0 probing 0c45:8001
kaweth: probe of 2-1:0.253 failed with error -5
usb 2-1: USB disconnect, device number 23
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 4-1: new high-speed USB device number 6 using dummy_hcd
usb 6-1: device descriptor read/64, error 18
gspca_sq930x: reg_w 0105 0f00 failed -71
sq930x: probe of 3-1:0.79 failed with error -71
usb 3-1: USB disconnect, device number 116
gspca_sn9c2028: read1 error -71
gspca_sn9c2028: read1 error -71
sn9c2028: probe of 5-1:0.103 failed with error -71
usb 5-1: USB disconnect, device number 8
usb usb6-port1: attempt power cycle
smscufx: Failed to read register index 0x00003004
smscufx: error -71 reading 0x3004 register from device
smscufx: probe of 1-1:0.138 failed with error -71
usb 1-1: USB disconnect, device number 114
usb 4-1: device descriptor read/64, error 18
usb 1-1: new high-speed USB device number 115 using dummy_hcd
usb 2-1: new high-speed USB device number 24 using dummy_hcd
usb 4-1: device descriptor read/64, error 18
usb 3-1: new high-speed USB device number 117 using dummy_hcd
usb 6-1: new high-speed USB device number 51 using dummy_hcd
usb 5-1: new high-speed USB device number 9 using dummy_hcd
usb 1-1: Using ep0 maxpacket: 8
usb 2-1: Using ep0 maxpacket: 32
usb 4-1: new high-speed USB device number 7 using dummy_hcd
usb 3-1: Using ep0 maxpacket: 8
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 2-1: config 0 has an invalid interface number: 253 but max is 0
usb 2-1: config 0 has no interface number 0
usb 2-1: New USB device found, idVendor=1645, idProduct=0005, bcdDevice=8d.06
usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 2-1: config 0 descriptor??
usb 3-1: config 0 has an invalid interface number: 79 but max is 0
usb 3-1: config 0 has no interface number 0
usb 6-1: device descriptor read/64, error 18
usb 3-1: New USB device found, idVendor=041e, idProduct=4038, bcdDevice=71.0d
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
usb 5-1: device descriptor read/64, error 18
gspca_main: sq930x-2.14.0 probing 041e:4038
usb 4-1: device descriptor read/64, error 18
kaweth 2-1:0.253: Firmware present in device.
kaweth 2-1:0.253: Error reading configuration (-71), no net device created
kaweth: probe of 2-1:0.253 failed with error -5
usb 2-1: USB disconnect, device number 24
gspca_sq930x: reg_w 0305 fd00 failed -71
sq930x: probe of 3-1:0.79 failed with error -71
smscufx: Failed to write register index 0x00003008 with value 0x00000001
smscufx: ufx_lite_reset error writing 0x3008
smscufx: error -71 resetting device
usb 3-1: USB disconnect, device number 117
smscufx: probe of 1-1:0.138 failed with error -71
usb 5-1: device descriptor read/64, error 18
usb 1-1: USB disconnect, device number 115
usb 4-1: device descriptor read/64, error 18
usb 6-1: device descriptor read/64, error -71
usb 2-1: new high-speed USB device number 25 using dummy_hcd
usb usb4-port1: attempt power cycle
usb 5-1: new high-speed USB device number 10 using dummy_hcd
usb 2-1: Invalid ep0 maxpacket: 512
usb 6-1: new high-speed USB device number 52 using dummy_hcd
usb 3-1: new high-speed USB device number 118 using dummy_hcd
usb 2-1: new high-speed USB device number 26 using dummy_hcd
usb 5-1: device descriptor read/64, error 18
usb 6-1: Using ep0 maxpacket: 8
usb 3-1: Using ep0 maxpacket: 8
usb 6-1: config 0 has an invalid interface number: 177 but max is 0
usb 6-1: config 0 has no interface number 0
usb 3-1: config 0 has an invalid interface number: 79 but max is 0
usb 3-1: config 0 has no interface number 0
usb 2-1: Invalid ep0 maxpacket: 512
usb 3-1: New USB device found, idVendor=041e, idProduct=4038, bcdDevice=71.0d
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb usb2-port1: attempt power cycle
usb 1-1: new high-speed USB device number 116 using dummy_hcd
usb 3-1: config 0 descriptor??
gspca_main: sq930x-2.14.0 probing 041e:4038
usb 6-1: string descriptor 0 read error: -71
usb 6-1: New USB device found, idVendor=4348, idProduct=5523, bcdDevice=1e.c0
usb 6-1: New USB device strings: Mfr=4, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
usb 6-1: can't set config #0, error -71
usb 6-1: USB disconnect, device number 52
usb 4-1: new high-speed USB device number 8 using dummy_hcd
usb 5-1: device descriptor read/64, error 18
usb 1-1: Using ep0 maxpacket: 8
usb usb5-port1: attempt power cycle
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 6-1: new high-speed USB device number 53 using dummy_hcd
usb 4-1: device descriptor read/64, error -71
usb 6-1: Using ep0 maxpacket: 8
usb 2-1: new high-speed USB device number 27 using dummy_hcd
gspca_sq930x: reg_w 0105 0f00 failed -71
sq930x: probe of 3-1:0.79 failed with error -71
usb 3-1: USB disconnect, device number 118
usb 6-1: config 0 has an invalid interface number: 94 but max is 0
usb 6-1: config 0 has no interface number 0
usb 6-1: config 0 interface 94 has no altsetting 0
smscufx: Failed to write register index 0x00003008 with value 0x00000001
smscufx: ufx_lite_reset error writing 0x3008
smscufx: error -71 resetting device
smscufx: probe of 1-1:0.138 failed with error -71
usb 1-1: USB disconnect, device number 116
usb 6-1: string descriptor 0 read error: -71
usb 6-1: New USB device found, idVendor=0409, idProduct=8024, bcdDevice=76.57
usb 6-1: New USB device strings: Mfr=0, Product=3, SerialNumber=6
usb 6-1: config 0 descriptor??
usb 6-1: can't set config #0, error -71
usb 6-1: USB disconnect, device number 53
usb 2-1: Invalid ep0 maxpacket: 512
usb 4-1: device descriptor read/64, error 18
usb 5-1: new high-speed USB device number 11 using dummy_hcd
usb 2-1: new high-speed USB device number 28 using dummy_hcd
usb 4-1: new high-speed USB device number 9 using dummy_hcd
usb 6-1: new high-speed USB device number 54 using dummy_hcd
usb 2-1: Invalid ep0 maxpacket: 512
usb usb2-port1: unable to enumerate USB device
usb 3-1: new high-speed USB device number 119 using dummy_hcd
usb 4-1: device descriptor read/64, error 18
usb 6-1: Using ep0 maxpacket: 8
usb 1-1: new high-speed USB device number 117 using dummy_hcd
usb 6-1: config 0 has an invalid interface number: 192 but max is 0
usb 6-1: config 0 has no interface number 0
usb 6-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=19.af
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: Using ep0 maxpacket: 8
usb 6-1: config 0 descriptor??
usb 3-1: config 0 has an invalid interface number: 79 but max is 0
usb 3-1: config 0 has no interface number 0
usb 3-1: New USB device found, idVendor=041e, idProduct=4038, bcdDevice=71.0d
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
usb 1-1: Using ep0 maxpacket: 8
gspca_main: sq930x-2.14.0 probing 041e:4038
usb 4-1: device descriptor read/64, error 18
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 5-1: device descriptor read/64, error 18
usb usb4-port1: unable to enumerate USB device
usb 6-1: non-Atmel transceiver xxxxed9a
usb 6-1: Firmware version (0.0) predates our first public release.
usb 6-1: Please update to version 0.2 or newer
usb 6-1: atusb_probe: initialization failed, error = -19
usb 6-1: USB disconnect, device number 54
usb 5-1: device descriptor read/64, error 18
smscufx: Failed to write register index 0x00003008 with value 0x00000001
smscufx: ufx_lite_reset error writing 0x3008
smscufx: error -71 resetting device
smscufx: probe of 1-1:0.138 failed with error -71
usb 1-1: USB disconnect, device number 117
usb 2-1: new high-speed USB device number 29 using dummy_hcd
gspca_sq930x: reg_w 0105 0f00 failed -71
sq930x: probe of 3-1:0.79 failed with error -71
usb 3-1: USB disconnect, device number 119
usb 5-1: new high-speed USB device number 12 using dummy_hcd
usb 2-1: Invalid ep0 maxpacket: 512
usb 5-1: device descriptor read/64, error 18
usb 2-1: new high-speed USB device number 30 using dummy_hcd
usb 6-1: new high-speed USB device number 55 using dummy_hcd
usb 2-1: Invalid ep0 maxpacket: 512
usb usb2-port1: attempt power cycle
usb 1-1: new high-speed USB device number 118 using dummy_hcd
usb 3-1: new high-speed USB device number 120 using dummy_hcd
usb 6-1: Using ep0 maxpacket: 8
usb 5-1: device descriptor read/64, error 18
usb 6-1: config 0 has an invalid interface number: 192 but max is 0
usb 6-1: config 0 has no interface number 0
usb 6-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=19.af
usb usb5-port1: unable to enumerate USB device
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
usb 1-1: Using ep0 maxpacket: 8
usb 3-1: Using ep0 maxpacket: 8
usb 4-1: new high-speed USB device number 10 using dummy_hcd
usb 1-1: config 0 has an invalid interface number: 138 but max is 0
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0424, idProduct=9d00, bcdDevice=f4.02
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
usb 3-1: config 0 has an invalid interface number: 79 but max is 0
usb 3-1: config 0 has no interface number 0
usb 3-1: New USB device found, idVendor=041e, idProduct=4038, bcdDevice=71.0d
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
gspca_main: sq930x-2.14.0 probing 041e:4038
usb 6-1: atusb_control_msg: req 0x21 val 0x0 idx 0x1c, error -71
usb 6-1: Firmware version (0.0) predates our first public release.
usb 6-1: Please update to version 0.2 or newer
usb 6-1: atusb_probe: initialization failed, error = -71
atusb: probe of 6-1:0.192 failed with error -71
usb 6-1: USB disconnect, device number 55
usb 4-1: device descriptor read/64, error 18
usb 2-1: new high-speed USB device number 31 using dummy_hcd
usb 2-1: Invalid ep0 maxpacket: 512
smscufx: Failed to write register index 0x00003008 with value 0x00000001
smscufx: ufx_lite_reset error writing 0x3008
smscufx: error -71 resetting device
smscufx: probe of 1-1:0.138 failed with error -71
usb 1-1: USB disconnect, device number 118
usb 6-1: new high-speed USB device number 56 using dummy_hcd
usb 4-1: device descriptor read/64, error 18
usb 2-1: new high-speed USB device number 32 using dummy_hcd