How to find version of the installed XHCI driver?

dg1727 · 03-04-2014, 05:21 PM

Hi LQ readers,

I'm trying to find out what version of the xHCI driver is in my kernel.

When I type

Code:

lsmod | grep -i hci

(I left out the "x" on purpose)

... I get only 2 entries about AHCI, which is related to SATA rather than USB. The "lsmod" output doesn't even include EHCI for USB 2.0.

How can I identify the version of my xHCI driver?

Any help would be terrific.

widget · 03-05-2014, 05:10 AM

That support is in the kernel.

dg1727 · 11-24-2014, 06:50 PM

Hi 'widget' or other:

It sounds, then, like the xHCI driver is not in a kernel module. In that case, can you please remind me how to find non-module driver versions in a running Linux kernel?

Regardless, I'd like a way to get a report of the xHCI driver version on a running Linux computer.

widget · 11-24-2014, 11:59 PM

Have you tried that command with the entire xhci used?

I think you should do that.

You could also try;

Code:

dmesg | -i xhci

dg1727 · 12-01-2014, 04:56 AM

Yes, I tried that command with the entire "xhci" used:

Code:

lsmod | grep -i xhci

As expected, this removes the references to AHCI, resulting in no output from the "grep" command at all.

I also tried the following per your suggestion:

Code:

dmesg | grep -i xhci

... Still no XHCI-driver version# is listed.