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DM365: USB hub can't work ok with two RTL8150s

Chris Meng
Mastermind 37736 points

Hi,

We met problem when connecting two RTL8150 on USB hub to DM365 usb interface. We are using PSP 2.10.00.14.

When only connect one RTL8150 on usb hub, everything is ok.

If connected two RTL8150s on usb hub, one RTL8150 can work ok, but we met "No space left on device" error when using another one.

Do you have idea to solve this problem?

  • 0
    TI__Expert 7435 points

    Chris,

    This issues seems to be related to the endpoint limitation on the USB controller on DM365.  Try enabling Interrupt endpoiint scheduling feature by reserving the endpoint for Interrupt transport type.

    regards

    swami

  • 0 in reply to swami
    Prodigy 10 points

    swami,

    I have try it with your sugesstion, but there is still have the problem. The problem is follow:  I hava a 4 port USB hub, when connect it  to PC  with 4 usb device, it works very well, but connect it to the dm365 EVM , only 3 port work well, the left work wrong.

    regards.

    kunter

  • 0 in reply to kunter lee
    TI__Expert 7435 points

    Lee,

    Can you provide a layout of your config and information on the (3) devices that work and the (1) device that does not work.  That would be helpful.  Also pl. ensure that you have have the related updates to the kernel applied.

    regards

    swami