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[EHS6] USB not available after some time | Thales IoT Developer Community

July 7, 2014 - 11:53am, 3180 views

Hello, I had a test module running this weekend and today was reconnected the USB cable to my Windows PC to check the SYSTEM.OUT debug output but this did not work. After connecting Windows gives me the message 'Unknown USB device connected'. So I connected the module to my linux machine and also there it was not working; [code] [ 1254.002139] usb 2-1.5: new high-speed USB device number 4 using ehci-pci [ 1269.081081] usb 2-1.5: device descriptor read/64, error -110 [ 1284.264108] usb 2-1.5: device descriptor read/64, error -110 [ 1284.440194] usb 2-1.5: new high-speed USB device number 5 using ehci-pci [ 1299.519074] usb 2-1.5: device descriptor read/64, error -110 [ 1314.702092] usb 2-1.5: device descriptor read/64, error -110 [ 1314.878177] usb 2-1.5: new high-speed USB device number 6 using ehci-pci [ 1325.290881] usb 2-1.5: device not accepting address 6, error -110 [ 1325.363069] usb 2-1.5: new high-speed USB device number 7 using ehci-pci [ 1335.775712] usb 2-1.5: device not accepting address 7, error -110 [ 1335.775803] hub 2-1:1.0: unable to enumerate USB device on port 5 [/code] After rebooting the module it is working again: [code] [ 1343.675486] usb 2-1.5: new high-speed USB device number 8 using ehci-pci [ 1343.777309] usb 2-1.5: New USB device found, idVendor=1e2d, idProduct=0058 [ 1343.777314] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1343.777318] usb 2-1.5: Product: EHx [ 1343.777320] usb 2-1.5: Manufacturer: Cinterion Wireless Modules [ 1343.925250] cdc_acm 2-1.5:1.0: ttyACM0: USB ACM device [ 1343.927388] cdc_acm 2-1.5:1.2: ttyACM1: USB ACM device [ 1343.929484] cdc_acm 2-1.5:1.4: ttyACM2: USB ACM device [ 1343.931131] cdc_acm 2-1.5:1.6: ttyACM3: USB ACM device [ 1343.932752] cdc_acm 2-1.5:1.8: ttyACM4: USB ACM device [ 1343.935605] cdc_acm 2-1.5:1.10: ttyACM5: USB ACM device [ 1343.937341] cdc_acm 2-1.5:1.12: ttyACM6: USB ACM device [ 1343.938955] usbcore: registered new interface driver cdc_acm [ 1343.938957] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [/code]