[CentOS] USB 2.0 device on a USB 3.0 plug

--On Thursday, February 16, 2017 12:58 PM -0500 Jerry Geis 
<jerry.geis at gmail.com> wrote:

> [495043.100076] usb 5-2: device descriptor read/64, error -71

The USB driver uses negative values of the errors from 
/usr/include/asm-generic/errno.h. 71 is EPROTO, a protocol error.

Check the USB driver source code to see what would elicit this error.



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