That is dmesg log when I connect the USB mouse.
sec. 73-82 is the mouse
sec. 101-103 the USB stick, that have been successfully recognized and working.
The same behavior also found in Linaro-distro from wiki.
[ 73.662445] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 76.740539] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 79.818664] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 82.896789] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 82.904052] ehci-omap ehci-omap.0: port 1 cannot be enabled [ 82.909881] ehci-omap ehci-omap.0: Maybe your device is not a high speed device? [ 82.917602] ehci-omap ehci-omap.0: USB host (EHCI) controller does not support full speed or low speed device on it's root port. [ 82.929656] ehci-omap ehci-omap.0: Please connect full/low speed device via a high speed hub. [ 82.938568] hub 1-0:1.0: unable to enumerate USB device on port 1 ------ [ 101.693664] usb 1-1: new high speed USB device using ehci-omap and address 6 [ 101.853820] usb 1-1: New USB device found, idVendor=0951, idProduct=1643 [ 101.860809] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 101.868255] usb 1-1: Product: DataTraveler G3 [ 101.872802] usb 1-1: Manufacturer: Kingston [ 101.877166] usb 1-1: SerialNumber: 001CC0EC34CAFD1095BA7A0F [ 101.890167] scsi0 : usb-storage 1-1:1.0 [ 101.958129] usbcore: registered new interface driver uas [ 102.922790] scsi 0:0:0:0: Direct-Access Kingston DataTraveler G3 1.00 PQ: 0 ANSI: 4 [ 102.932983] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 102.941131] sd 0:0:0:0: [sda] 15131636 512-byte logical blocks: (7.74 GB/7.21 GiB) [ 102.959228] sd 0:0:0:0: [sda] Write Protect is off [ 102.964233] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 102.992614] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 103.006042] sda: sda1 [ 103.014984] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 103.021331] sd 0:0:0:0: [sda] Attached SCSI removable disk [ 103.281433] FAT: invalid media value (0x00) [ 103.285827] VFS: Can't find a valid FAT filesystem on dev sda.
IGEPv2 supports USB High-speed traffic (USB 2.0), but Full-speed/Low-speed traffic (USB 1.x) is not supported. The problem resides in a silicon errata from OMAP DM3730 (See Advisory 1.56 from http://www.ti.com/lit/er/sprz319e/sprz319e.pdf). For this reason, your board can not detect your mouse.
You can use an USB Hub to avoid this problem and connect any USB device.
Hope it helps you.