I done connect my USB DAC to my Raspberry PI 2. It working fine on about 30 minutes. Then the USB DAC is alway disconnect & re-connect loop, and stop playing music
Here is log from system, can anyone help me about this problem
[ 3132.211885] usb 1-1.5: USB disconnect, device number 4
[ 3132.211997] usb 1-1.5: cannot submit urb (err = -19)
[ 3132.446252] usb 1-1.5: new high-speed USB device number 5 using dwc_otg
[ 3132.547324] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3132.547353] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3132.547372] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3132.547387] usb 1-1.5: Manufacturer: Luckit
[ 3132.547403] usb 1-1.5: SerialNumber: 0330
[ 3191.611824] usb 1-1.5: USB disconnect, device number 5
[ 3191.846250] usb 1-1.5: new high-speed USB device number 6 using dwc_otg
[ 3191.947120] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3191.947140] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3191.947152] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3191.947163] usb 1-1.5: Manufacturer: Luckit
[ 3191.947173] usb 1-1.5: SerialNumber: 0330
[ 3212.094469] usb 1-1.5: USB disconnect, device number 6
[ 3212.336291] usb 1-1.5: new high-speed USB device number 7 using dwc_otg
[ 3212.437103] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3212.437125] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3212.437136] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3212.437147] usb 1-1.5: Manufacturer: Luckit
[ 3212.437158] usb 1-1.5: SerialNumber: 0330
[ 3216.168058] usb 1-1.5: 1:1: cannot set freq 44100 (v2): err -71
[ 3216.191051] usb 1-1.5: USB disconnect, device number 7
[ 3216.436291] usb 1-1.5: new high-speed USB device number 8 using dwc_otg
[ 3216.537402] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3216.537432] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3216.537450] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3216.537466] usb 1-1.5: Manufacturer: Luckit
[ 3216.537481] usb 1-1.5: SerialNumber: 0330
[ 3218.239390] usb 1-1.5: USB disconnect, device number 8
[ 3218.476292] usb 1-1.5: new high-speed USB device number 9 using dwc_otg
[ 3218.577160] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3218.577182] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3218.577194] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3218.577205] usb 1-1.5: Manufacturer: Luckit
[ 3218.577215] usb 1-1.5: SerialNumber: 0330
[ 3224.384205] usb 1-1.5: USB disconnect, device number 9
[ 3224.626300] usb 1-1.5: new high-speed USB device number 10 using dwc_otg
[ 3224.727424] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3224.727454] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3224.727472] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3224.727488] usb 1-1.5: Manufacturer: Luckit
[ 3224.727503] usb 1-1.5: SerialNumber: 0330
[ 3226.432390] usb 1-1.5: USB disconnect, device number 10
[ 3226.666344] usb 1-1.5: new high-speed USB device number 11 using dwc_otg
[ 3226.767063] usb 1-1.5: New USB device found, idVendor=20a0, idProduct=4143
[ 3226.767085] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3226.767096] usb 1-1.5: Product: Luckit USB Audio 2.0
[ 3226.767107] usb 1-1.5: Manufacturer: Luckit
[ 3226.767117] usb 1-1.5: SerialNumber: 0330
Thanks!
