On 05/22/17 14:23, Lev Serebryakov wrote:
15:21:08.960407 usbus1.2

What is the occurrence rate of this IOERROR? Once per attach/detach.

Did you try to connect the USB device to a different port and/or USB HUB.

It might also be that the user-space driver tries to reset the device when it sees this error. To figure that out you'll need to enable debugging in the UPS software package.

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