Problem USB disabled by hub (EMI?)

[enrico.capone]

Hello,
i have 30 Lime2 with problems on USB.
I'have attached an usb scanner and randomly disconnects. The MAximum current adsorbed from the scanner is 450mA.
Any idea how to solve/debug?
Best Regards


[Jul15 02:16] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006459] usb 4-1: USB disconnect, device number 2
[  +0.366518] usb 4-1: new full-speed USB device number 3 using ohci-platform
[  +0.228846] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000027] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000011] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000008] usb 4-1: SerialNumber: 22017B512C
[  +0.006376] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.016056] hid-generic 0003:0C2E:1014.0002: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 02:28] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006512] usb 4-1: USB disconnect, device number 3
[  +0.357895] usb 4-1: new full-speed USB device number 4 using ohci-platform
[  +0.229336] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000029] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000009] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.008381] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.018699] hid-generic 0003:0C2E:1014.0003: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 02:39] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006399] usb 4-1: USB disconnect, device number 4
[  +0.365134] usb 4-1: new full-speed USB device number 5 using ohci-platform
[  +0.228893] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000029] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000009] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.009390] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.022932] hid-generic 0003:0C2E:1014.0004: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 02:56] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006479] usb 4-1: USB disconnect, device number 5
[  +0.367153] usb 4-1: new full-speed USB device number 6 using ohci-platform
[  +0.228853] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000029] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.017435] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.022800] hid-generic 0003:0C2E:1014.0005: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 05:41] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006681] usb 4-1: USB disconnect, device number 6
[  +0.354536] usb 4-1: new full-speed USB device number 7 using ohci-platform
[  +0.229061] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000028] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000011] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.009400] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.023081] hid-generic 0003:0C2E:1014.0006: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 06:03] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006725] usb 4-1: USB disconnect, device number 7
[  +0.352488] usb 4-1: new full-speed USB device number 8 using ohci-platform
[  +0.228221] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000028] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000008] usb 4-1: SerialNumber: 22017B512C
[  +0.006494] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.015036] hid-generic 0003:0C2E:1014.0007: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 07:21] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006474] usb 4-1: USB disconnect, device number 8
[  +0.354184] usb 4-1: new full-speed USB device number 9 using ohci-platform
[  +0.229312] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000062] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000011] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000008] usb 4-1: SerialNumber: 22017B512C
[  +0.006142] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.015050] hid-generic 0003:0C2E:1014.0008: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 07:34] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006478] usb 4-1: USB disconnect, device number 9
[  +0.364149] usb 4-1: new full-speed USB device number 10 using ohci-platform
[  +0.229019] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000031] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.018403] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.020864] hid-generic 0003:0C2E:1014.0009: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 08:32] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006395] usb 4-1: USB disconnect, device number 10
[  +0.875551] usb 4-1: new full-speed USB device number 11 using ohci-platform
[  +0.220506] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000052] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000027] usb 4-1: Product: 7680GSR
[  +0.000024] usb 4-1: Manufacturer: Honeywell
[  +0.000024] usb 4-1: SerialNumber: 22017B512C
[  +0.015996] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.017235] hid-generic 0003:0C2E:1014.000A: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 08:55] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006422] usb 4-1: USB disconnect, device number 11
[  +0.353370] usb 4-1: new full-speed USB device number 12 using ohci-platform
[  +0.229231] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000028] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.006644] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.016958] hid-generic 0003:0C2E:1014.000B: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 09:18] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006481] usb 4-1: USB disconnect, device number 12
[  +0.349710] usb 4-1: new full-speed USB device number 13 using ohci-platform
[  +0.228719] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000024] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000009] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000008] usb 4-1: SerialNumber: 22017B512C
[  +0.006437] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.015104] hid-generic 0003:0C2E:1014.000C: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 09:30] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006485] usb 4-1: USB disconnect, device number 13
[Jul15 10:02] usb 4-1: new full-speed USB device number 15 using ohci-platform
[  +0.232628] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000044] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000028] usb 4-1: Product: 7680GSR
[  +0.000024] usb 4-1: Manufacturer: Honeywell
[  +0.000024] usb 4-1: SerialNumber: 22017B512C
[  +0.012609] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.014851] hid-generic 0003:0C2E:1014.000D: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 10:05] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006491] usb 4-1: USB disconnect, device number 15
[  +0.366684] usb 4-1: new full-speed USB device number 16 using ohci-platform
[  +0.229074] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000027] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.009471] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.017180] hid-generic 0003:0C2E:1014.000E: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 10:52] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006574] usb 4-1: USB disconnect, device number 16
[  +0.361881] usb 4-1: new full-speed USB device number 17 using ohci-platform
[  +0.228720] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000028] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000010] usb 4-1: Product: 7680GSR
[  +0.000008] usb 4-1: Manufacturer: Honeywell
[  +0.000009] usb 4-1: SerialNumber: 22017B512C
[  +0.008454] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.016345] hid-generic 0003:0C2E:1014.000F: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 10:57] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006397] usb 4-1: USB disconnect, device number 17
[Jul15 15:17] usb 4-1: new full-speed USB device number 19 using ohci-platform
[  +0.232772] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000040] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000018] usb 4-1: Product: 7680GSR
[  +0.000015] usb 4-1: Manufacturer: Honeywell
[  +0.000015] usb 4-1: SerialNumber: 22017B512C
[  +0.015844] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.014908] hid-generic 0003:0C2E:1014.0010: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 17:12] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006398] usb 4-1: USB disconnect, device number 19
[Jul15 17:14] usb 4-1: new full-speed USB device number 21 using ohci-platform
[  +0.224401] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000024] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000011] usb 4-1: Product: 7680GSR
[  +0.000011] usb 4-1: Manufacturer: Honeywell
[  +0.000011] usb 4-1: SerialNumber: 22017B512C
[  +0.009639] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.025289] hid-generic 0003:0C2E:1014.0011: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 17:24] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006411] usb 4-1: USB disconnect, device number 21
[  +0.349119] usb 4-1: new full-speed USB device number 22 using ohci-platform
[Jul15 17:26] usb 4-1: new full-speed USB device number 23 using ohci-platform
[  +0.225228] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000049] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000027] usb 4-1: Product: 7680GSR
[  +0.000024] usb 4-1: Manufacturer: Honeywell
[  +0.000024] usb 4-1: SerialNumber: 22017B512C
[  +0.012700] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.014873] hid-generic 0003:0C2E:1014.0012: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2
[Jul15 17:44] usb usb4-port1: disabled by hub (EMI?), re-enabling...
[  +0.006503] usb 4-1: USB disconnect, device number 23
[  +0.352564] usb 4-1: new full-speed USB device number 24 using ohci-platform
[  +0.228935] usb 4-1: New USB device found, idVendor=0c2e, idProduct=1014, bcdDevice= 0.41
[  +0.000025] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000011] usb 4-1: Product: 7680GSR
[  +0.000009] usb 4-1: Manufacturer: Honeywell
[  +0.000008] usb 4-1: SerialNumber: 22017B512C
[  +0.009434] cdc_acm 4-1:1.0: ttyACM0: USB ACM device
[  +0.021984] hid-generic 0003:0C2E:1014.0013: hiddev96,hidraw0: USB HID v1.01 Device [Honeywell 7680GSR] on usb-1c1c400.usb-1/input2

[LubOlimex]

Which USB port are you using?

If using the USB type A host port, try using the other host port.

One of the USB type A ports is capable of providing up to 523mA, the other 1000mA. This is visible in the schematic.

Try with better quality USB cable. If possible shorter and shielded.