at91sam9260 USB U盘问题
各位大侠，能否帮我看看，当U盘插到host口时，会有下面的打印，在proc/bus/usb/devices下也看不到usb设备。有救：
usb 1-1: new full speed USB device using at91_ohci and address 2
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using at91_ohci and address 3
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using at91_ohci and address 4
usb 1-1: device not accepting address 4, error -62
usb 1-1: new full speed USB device using at91_ohci and address 5
usb 1-1: device not accepting address 5, error -62
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