On 20/02/2019 13:00, Subhashini Rao Beerisetty wrote: > On Tue, Feb 19, 2019 at 8:30 PM Roger Quadros <rogerq@xxxxxx> wrote: >> >> Please keep linux-usb in cc. >> >> On 19/02/2019 16:50, Subhashini Rao Beerisetty wrote: >>> On Tue, Feb 19, 2019 at 8:06 PM Roger Quadros <rogerq@xxxxxx> wrote: >>>> >>>> Hi Subhashini, >>>> >>>> On 19/02/2019 16:30, Subhashini Rao Beerisetty wrote: >>>>> Hi All, >>>>> >>>>> [ Please keep me in CC as I'm not subscribed to the list] >>>>> >>>>> >>>>> I’m using an Ubuntu 16.04.4 LTS PC and when I connect an USB device to >>>>> my Ubuntu PC, I see the below mentioned messages in dmesg. >>>>> >>>>> >>>>> >>>>> [ 9012.287432] usb usb3-port1: over-current condition >>>>> >>>>> [ 9012.287739] usb usb2-port1: over-current condition >>>>> >>>>> [ 9012.495919] usb 2-4: USB disconnect, device number 3 >>>>> >>>>> [ 9012.495940] usb 2-4.1: USB disconnect, device number 5 >>>>> >>>>> [ 9012.615609] usb usb3-port1: over-current condition >>>>> >>>>> [ 9012.628513] usb 2-4.2: USB disconnect, device number 7 >>>>> >>>>> [ 9012.824274] usb usb3-port1: over-current condition >>>>> >>>>> [ 9015.304232] hub_port_connect: 12 callbacks suppressed >>>>> >>>>> [ 9015.304254] usb usb2-port4: connect-debounce failed >>>>> >>>>> [ 9015.512437] usb usb2-port1: over-current condition >>>>> >>>>> [ 9015.720767] usb usb2-port2: over-current condition >>>>> >>>>> >>>>> >>>>> I’d like to What these messages indicates? Is it a hardware problem >>>>> from host side(ubuntu PC) or device side? >>>> >>>> Can you try other USB devices? >>> Yes, on the same port other devices works fine. I tried connecting >>> Keyboard and it works fine. Basically I'm looking for how to debug >>> further for this type of issues. >> >> The device is drawing too much current which is triggering >> the overcurrent detection/protection circuit on the USB hub. >> >> What device is it? If it is an off the shelf device it might indicate >> a hardware fault and so time to buy a new one? > It is an embedded board. From Host PC, we are communicating to PIC on > embedded board via USB port. OK. You might want to check for support from the embedded board manufacturer. -- cheers, -roger Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
