[GLLUG] FreeBSD, USB, and a KVM

[Sean]

I don't get what you are saying..
Why would a KVM being supplying emulation for USB mice/keyboard for the 
"off" device? Muchless platform specific for USB? The whole point of USB 
(and firewire) is so you can add and remove devices on the fly. Which 
means the OS needs to load and unload drivers on the fly. Which the mac 
and Linux both do. 

You can use a PC usb keyboard on a Mac and vice versa. There are a few
differences in how the keys are mapped but this is a driver (software)
issue. I dont see why you would need a persistant device mapping like you
would for PS/2 since it basically defeats the purpose of USB muchless mac
or PC specific if there is such a thing.

The ONLY exception I know of offhand to this the first generation or so of 
the Macs had to change the USB standard slightly (on the controller) to 
make it so you could power on and off from the keyboard power button 
because the USB standard doesnt support that.

USB still sucks btw for a myriad more reasons. 



On 12 May 2003, Darrel Ray Clute, III wrote:

> Most USB based KVM's do not provide PC keyboard/mouse emulation although
> they all provide Mac keyboard/mouse emulation when not on that device. 
> This may or may not be your problem but is worth checking into.
> 
> On Mon, 2003-05-12 at 11:09, Mike Szumlinski wrote:
> > The odd thing is that the USB keyboard and mouse work just fine until I 
> > switch to a different computer using the KVM (ie unplug them).  When I 
> > switch back I get the following on screen, yet no control of either 
> > device:
> > 
> > 
> > ---switch to my Mac or PeeCee
> > May 12 11:06:37 mikes-freebsd kernel: uhub2: at uhub1 port 1 (addr 3) 
> > disconnected
> > May 12 11:06:37 mikes-freebsd kernel: ums0: detached
> > May 12 11:06:37 mikes-freebsd kernel: ukbd0: detached
> > May 12 11:06:37 mikes-freebsd kernel: uhid0: detached
> > May 12 11:06:37 mikes-freebsd kernel: uhub3: detached
> > May 12 11:06:37 mikes-freebsd kernel: uhub2: detached
> > --switch back to FreeBSD
> > May 12 11:06:42 mikes-freebsd kernel: uhub2: Texas Instruments TUSB2046 
> > hub, class 9/0, rev 1.10/1.25, addr 3
> > May 12 11:06:42 mikes-freebsd kernel: uhub2: 4 ports with 4 removable, 
> > self powered
> > May 12 11:06:44 mikes-freebsd kernel: ums0: Macally Macally USB Optical 
> > Net Mouse, rev 1.00/2.00, addr 4, iclass 3/1
> > May 12 11:06:44 mikes-freebsd kernel: ums0: 3 buttons and Z dir.
> > May 12 11:06:44 mikes-freebsd kernel: uhub3: Mitsumi Electric Hub in 
> > Apple Extended USB Keyboard, class 9/0, rev 1.10/1.22, addr 5
> > May 12 11:06:44 mikes-freebsd kernel: uhub3: 3 ports with 2 removable, 
> > bus powered
> > May 12 11:06:46 mikes-freebsd kernel: ukbd0: Mitsumi Electric Apple 
> > Extended USB Keyboard, rev 1.10/1.22, addr 6, iclass 3/1
> > May 12 11:06:46 mikes-freebsd kernel: kbd0 at ukbd0
> > May 12 11:06:46 mikes-freebsd kernel: uhid0: Mitsumi Electric Apple 
> > Extended USB Keyboard, rev 1.10/1.22, addr 6, iclass 3/0
> > 
> > Looks like its registering ukbd0 at kbd0, but for some reason it isn't 
> > "plugging in".  Same with the mouse.
> > 
> > -Mike
> > 
> > On Monday, May 12, 2003, at 10:46 AM, Adam McDougall wrote:
> > 
> > > Yeah, along those lines, check devd and usbd (if 5 even still uses 
> > > usbd).
> > > Need to make sure an appropriate daemon is running.
> > >
> > > On Mon, May 12, 2003 at 09:55:18AM -0400, Sean wrote:
> > >
> > >   I doubt this "answers" your question, but it sounds like F-BSD isn't
> > >   repolling the bus like it should be. When USB upport first came out 
> > > for
> > >   Linux, there was a set of scripts I think called hotsync or 
> > > something that
> > >   repolled that usb bus every like 6 seconds (via crontab) to
> > >   detect new devices (and load drivers), you might get away with those 
> > > or
> > >   look for something similar for F-BSD. 
> > 
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