[PC-BSD Dev] Mouse detection problem in PCBSD 10
claudio at hpgcc3.org
Sat Feb 1 14:49:59 PST 2014
I reported this in another thread but I'll make it a separate one
because it will affect a lot of people.
My USB mouse and keyoard are sharing a single device with multiple
endpoints. Same thing with my graphing tablet, it has multiple devices
for the macro keys, scroll keys and the tablet itself.
It seems the new auto-detection of devices is not smart enough to detect
this kind of composite USB devices.
Here's what happens:
devd detects the device and loads the kernel modules ukbd which attaches
to the keyboard portion of it only. The mouse portion should be handled
by ums but it's never loaded (or perhaps it is but fails to attach to
The solution is to use uhidd, which seems to work. At least I tested it
in text mode, in single user mode but never under X.
In my case, my device is in ugen2.2 and the other device is in ugen4.7,
so from the console I do:
sudo uhidd -d -u -kmo /dev/ugen2.2
sudo uhidd -d -u -kmo /dev/ugen4.7
and then I load moused.
I can test it with
vidcontrol -m on
and I can see the mouse moving perfectly with either device in text
mode. I'm not sure how to make the system autodetect this properly.
Is there any way to run uhidd first instead of the kernel drivers?
The wiki says we should compile the kernel without the drivers, but it
might be outdated, since now ums is loaded dynamically (I know because
mine isn't loading).
I noticed the author is Warner Losh (are you reading this Warner? I'd
appreciate your input).
More information about the Dev