Subject: Re: usb device problems
To: None <>
From: Gary Duzan <>
List: current-users
Date: 10/19/2000 07:19:08
   Unfortunately, it seems that the uhci driver is somewhat broken
for VIA chipset implementations. I just upgraded my old FIC SD11
setup to a new DFI AK74 (KX133-based) one and see the same problems
on both when trying to use a USB Zip drive. In this case, attaching
the drive fails with a number of "reset timeout" messages. If the
drive is connected at boot time, the boot never finishes. The last
comment I remember on the subject (from Lennart, I believe) was
that the uhci reset code was broken and needed to be rearchitected.
   I'll attach some USB/UHCI/UMASS debugging output that I collected
from the SD11 a couple weeks ago in case anyone cares to explore
the problem further. This was on a then-current 1.5_ALPHA2.

					Gary D. Duzan

#text/plain [usb-debug.txt] usb-debug.txt

In Message <200010190358.e9J3wJV00298@js1.jsnet> ,
   Joseph Sarkes <joe@js1.jsnet> wrote:

=>I have a couple usb thingies I'm playing with on my
=>asus A7V athlon motherboard with built in usb ports.
=>basically my problem is that when I plug in a logitech
=>remote keyboard/mouse pair of usb plugs and then plug
=>in my usr 56K voice fax modem usb connector, the usb
=>probing stuff goes into a loop and finally panics the
=>machine. In addition, when I power cycle the  modem, 
=>the whole usb chain of hubs seems to go through a whole
=>shutdown/reset instead of just the one affected port.
=>Do I have some misunderstanding of what I should be seeing?
=>Is something still in progress on usb support?
=>Will batman get out of this predicament? Tune in again
=>folks, same bat time, same bat channel.
=>BTW, my reason for playing with usb on the modem is that
=>my moving hard drives around didn't actually fix the silo
=>overflow problem I'm having with the serial port/modem
=>combo. I figured that usb would potentially bypass the whole
=>thing, but...
=>another question related to this is how does one make the
=>usb keyboard/mouse stuff take over for the ps/2 style keyboard
=>mouse under netbsd? The bios sees the usb keyboard if the
=>ps/2 one is unplugged, but then the machine won't work for
=>console logins until a ps/2 keyboard is plugged in after the
=>boot process is finished. I did manage to wsconscfg -k the 
=>second keyboard into operation afterwards.
=>Joseph Sarkes