why are these drivers missing from the Fedora kernel?

[Ranjan Maitra]

On Tue, 30 Jun 2015 18:39:11 +0100 Peter Robinson <pbrobinson at gmail.com> wrote:

> On Tue, Jun 30, 2015 at 6:31 PM, Peter Robinson <pbrobinson at gmail.com> wrote:
> >>> Missing from where?  What package are you referring to, because the
> >>> file is certainly in the kernel sources.
> >>
> >> I agree. The kernel is indeed in the vanilla kernel sources. However, it is not installed with the fedora kernel.
> >>
> >> So why does this matter? The MS Surface Type Cover 3 is not recognized at all with a Fedora 22 installation. It is recognized however, in distributions like kUbuntu. There, the dmesg gives:
> >>
> >>
> >> [    1.877685] usb 1-3: new full-speed USB device number 2 using xhci_hcd
> >> [    1.995794] usb 1-3: No LPM exit latency info found, disabling LPM.
> >> [    1.996542] usb 1-3: New USB device found, idVendor=045e, idProduct=07e2
> >> [    1.996546] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> >> [    1.996549] usb 1-3: Product: Surface Type Cover
> >> [    1.996551] usb 1-3: Manufacturer: Microsoft
> >>
> >> Such a dmesg does not show up with Fedora 22 LiveCD.
> >>
> >> So I looked this up:
> >>
> >> ~$ sudo dnf provides */hid-ids.h
> >> Last metadata expiration check performed 3:56:27 ago on Tue Jun 30 08:06:19 2015.
> >> kcbench-data-4.0-0.1-16.fc22.noarch : Kernel sources from 4.0 to be used by
> >>                                     : kcbench
> >> Repo        : fedora
> >>
> >> You can see that the file is in kcbench-data (which, btw, is 525 M addiitionally (!) when installed).
> >>
> >> I just wonder why the files/drivers are in the kernel (from kernel.org) but are not there in the Fedora 22 kernel. They seem to be there in the Ubuntu kernels.
> >
> > The commit is upstream [1] as of November and the appropriate bits are
> > in our kernel. Does it work if you "modprobe hid-microsoft" ?

Should I try this with the LiveCD? Or after installation (I have not actually had the courage to install F22 on my surface yet, sorry.)

> Actually it looks like you have a new variant " idProduct=07e2" that's
> not in our kernel yet, is it a specific language layout or something?

Yes, this may be a new thing. I also found this on the kernel bugzilla so this Type Cover 3 may be a newer version of the old product.

https://bugzilla.kernel.org/show_bug.cgi?id=100341


I bought mine in the US as did the bugzilla reporting guy. I am going to try and see if the IT department in my office has an older Type Cover 3 and see what that gets me.

Thanks again!

Best wishes,
Ranjan

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