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OMAPL138 USB error

liangzhu ma
Intellectual 320 points

Hi, all

I've an OMAPL138-board ( not from TI) and I can read from USB-pen, but when I write some file to usb-pen, some error like ( "I/O read..." ) occurs,

 The port I connect to L138 is USB1.1 and my USB-pen is 2.0,  when I change to usb-pen1.1, its OK.

My question is the USB1.1 port cann't be used to connect to USB-pen ?

If I was wrong, soft\ware or hardware problem is most possible?  ( In the kernel, I've selected usb-massstorage and other related things );

 

  • 0
    TI__Genius 9460 points

    Lian,

    Normally all the USB2.0 devices are expected to be backward compatible and so they should work on USb 1.1 host as well.It seems your 2.0 usb pen is having some issue while working in 1.1 environment.

    Regards,
    Ajay