unable to enumerate USB device : USB

My device is not able to detect a USB Camera , I checked, uvcvideo module and it's already inserted.

    Module                  Size  Used by
    uvcvideo               73728  0
    videobuf2_vmalloc      16384  1 uvcvideo
    videobuf2_memops       16384  1 videobuf2_vmalloc
    usb_f_ecm              16384  1
    g_ether                16384  0
    usb_f_rndis            20480  2 g_ether
    u_ether                20480  3 usb_f_ecm,usb_f_rndis,g_ether
    libcomposite           45056  3 usb_f_ecm,usb_f_rndis,g_ether
    arc4                   16384  2
    wl18xx                 73728  0
    wlcore                159744  1 wl18xx
    mac80211              323584  2 wl18xx,wlcore
    cfg80211              221184  3 mac80211,wl18xx,wlcore
    mxc_v4l2_capture       36864  0
    ipu_bg_overlay_sdc     16384  1 mxc_v4l2_capture
    ipu_still              16384  1 mxc_v4l2_capture
    ipu_prp_enc            16384  1 mxc_v4l2_capture
    ipu_csi_enc            16384  1 mxc_v4l2_capture
    ipu_fg_overlay_sdc     16384  1 mxc_v4l2_capture
    v4l2_int_device        16384  1 mxc_v4l2_capture
    wlcore_sdio            16384  0
    galcore               217088  0
    gpio_keys              20480  0

    dmesg 
    usb 1-1: new high-speed USB device number 78 using ci_hdrc
    usb 1-1: device descriptor read/all, error -71
    usb 1-1: new high-speed USB device number 79 using ci_hdrc
    usb 1-1: device descriptor read/all, error -71
    usb 1-1: new high-speed USB device number 80 using ci_hdrc
    usb 1-1: device descriptor read/8, error -71
    usb 1-1: device descriptor read/8, error -71
    usb 1-1: new high-speed USB device number 81 using ci_hdrc
    usb 1-1: device descriptor read/8, error -71
    usb 1-1: device descriptor read/8, error -71
    usb usb1-port1: unable to enumerate USB device

If any additional info required. Comment please.

Any Help appreciated

Thanks

Start with inspecting what those error numbers stand for ... The easiest way is to install moreutils like so:

sudo apt install moreutils

Then use errno to look them up like so:

$ errno 71
EPROTO 71 Protocol error

Then do your research troubleshooting, and logic.

If I had to throw a guess, I would say the problem is either of:

1. A broken/damaged USB port.
2. A broken/damaged USB cable.
3. A corrupted driver/libraries.
4. A broken/damaged USB device.

And in that order.

I had the same issue. I'm using a non-powered USB expansion device on one of my front ports. I started unplugging devices lo and behold it was the Android phone I had plugged in last night that was causing the issue. It was locked up/frozen. As soon as I unplugged it and replugged it in my other devices all worked again.