On Sun, 2 Feb 2020, John Jason Jordan wrote:
USB is a complicated thing. I suspect that the software is not the issue.
A motherboard has one, two, three or more USB connectors, and each
connector may serve more than one port, thus more than one port may have
to share what the motherboard gives it. And the motherboard may be lumping
connectors together as well.
John,
Interesting.
Try lshw -c usb to see if it sheds any light
Nope. By itself a few strings flash along the terminal but there's no output
display. Using 'lshw -X -c usb' produces an empty window; 'lshw -c usb -dump
<filename>' and,
[root@salmo ~]# lshw -short -c usb
H/W path Device Class Description
===================================================
[root@salmo ~]# lshw -businfo -c usb
Bus info Device Class Description
=================================================
[root@salmo ~]# lshw -xml -c usb
<?xml version="1.0" standalone="yes" ?>
<!-- generated by lshw-unknown -->
<!-- GCC 5.5.0 -->
<!-- Linux 4.19.84 #1 SMP Tue Nov 19 13:57:34 PST 2019 x86_64 -->
<!-- GNU libc 2 (glibc 2.23) -->
<list>
</list>
on which port has what capabilities. The user manual for the motherboard
may also provide clues.
The manual tells me which 3.x flavor is assigned to each port on the rear
panel.
Thanks,
Rich
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