Include USB mouse driver

[br]

Summary

Include USB mouse driver to GENERIC.

Obtained from: CheriBSD.

[emaste]

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

[br]

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

[manu]

In D36394#826540, @br wrote:

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

Because you didn't recompiled the modules perhaps ?
This is expected on current for any modules.
I don't see why we should include ums in GENERIC, we already have too much stuff.

[br]

In D36394#826604, @manu wrote:

In D36394#826540, @br wrote:

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

Because you didn't recompiled the modules perhaps ?
This is expected on current for any modules.
I don't see why we should include ums in GENERIC, we already have too much stuff.

I believe USB mouse is part of basic functionality of USB stack and g, same as USB keyboard.

In D36394#826604, @manu wrote:

In D36394#826540, @br wrote:

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

Because you didn't recompiled the modules perhaps ?
This is expected on current for any modules.
I don't see why we should include ums in GENERIC, we already have too much stuff.

That is the point, if you mess with different ABIs, developing stuff (e.g. have multiple rootfs'es, multiple kernels) you still expect a basic functionality from the kernel. Since USB stack is already included, USB keyboard already included, then USB mouse should also be there.

[jrtc27]

I was under the impression from what you'd said it was in amd64's GENERIC but not arm64's, but that's not the case. It seems a little odd to care about a single-file USB driver that most people using their computer as a proper computer rather than a development board will want, but if it's loaded as a module on amd64 then it should be too on arm64 (or compiled in for both). It was not at all clear your problem was that you were missing modules / had incompatible ones, it sounded like your problem was that ums really needed to be in the kernel.

[manu]

In D36394#826670, @br wrote:

In D36394#826604, @manu wrote:

In D36394#826540, @br wrote:

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

Because you didn't recompiled the modules perhaps ?
This is expected on current for any modules.
I don't see why we should include ums in GENERIC, we already have too much stuff.

I believe USB mouse is part of basic functionality of USB stack and g, same as USB keyboard.

keyboards are useful to login and do stuff, mouse isn't.

In D36394#826604, @manu wrote:

In D36394#826540, @br wrote:

In D36394#826539, @emaste wrote:

We don't have ums on amd64 either

I don't have any objection but it should be loaded automatically when a USB mouse is found?

My situation was that I have updated kernel, then noticed mouse is not working anymore.
I spent a day looking for a bug in DRM and purecap user graphical stack. Eventually found that my kernel driver module for mouse is not compatible with new kernel.

Because you didn't recompiled the modules perhaps ?
This is expected on current for any modules.
I don't see why we should include ums in GENERIC, we already have too much stuff.

That is the point, if you mess with different ABIs, developing stuff (e.g. have multiple rootfs'es, multiple kernels) you still expect a basic functionality from the kernel. Since USB stack is already included, USB keyboard already included, then USB mouse should also be there.