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List:       linux-usb-users
Subject:    [Linux-usb-users] USB problems with ATEN Miniview II
From:       "S. Murthy Kambhampaty" <smk_dc () yahoo ! com>
Date:       2002-01-30 20:24:35
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I am having a problem using my USB keyboard (MS Natural) and mouse (MS
Intellimouse) with my ATEN Miniview II KVM switch after upgrading to RH
7.2. It worked without problems in RH 7.1 on both connected Linux boxes
and on Win2K box.

Problems on the OHCI machine:
After the upgrade, the OHCI box (SuperMicro S2QE6) is fine when directly
connecting the keyboard and mouse. /var/log/messages reads:

Jan 29 18:13:33 box_o rc.sysinit: Initializing USB controller
(usb-ohci):  succeeded
Jan 29 18:21:23 box_o kernel: usb.c: USB disconnect on device 2
Jan 29 18:21:35 box_o kernel: input0: USB HID v1.10 Keyboard [045e:000b]
on usb1:3.0
Jan 29 18:21:46 box_o kernel: input1: USB HID v1.00 Mouse [Microsoft
Microsoft IntelliMouse® Optical] on usb1:4.0
Jan 29 18:26:28 box_o kernel: usb.c: USB disconnect on device 4
Jan 29 18:26:32 box_o kernel: usb.c: USB disconnect on device 3
Jan 29 18:26:53 box_o kernel: input0: USB HID v1.00 Keyboard [ATEN
CS124U V1.00] on usb1:5.0
Jan 29 18:26:53 box_o kernel: input1: USB HID v1.00 Mouse [ATEN CS124U
V1.00] on usb1:5.1

When keyboard and mouse are connected through the KVM switch, <cat
/proc/bus/usb/devices> gives:

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc= 34/900 us ( 4%), #Int=  2, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI Root Hub
S:  SerialNumber=dce0
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0557 ProdID=2202 Rev= 1.00
S:  Manufacturer=ATEN
S:  Product=CS124U V1.00
C:* #Ifs= 2 Cfg#= 1 Atr=60 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=01 Driver=hid
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl= 10ms
I:  If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=hid
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl= 10ms


On the UHCI machine:
/var/log/messages give UHCI interrupts every 5 seconds, like so

Jan 30 15:04:42 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1508
Jan 30 15:04:47 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 372
Jan 30 15:04:52 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1292
Jan 30 15:04:57 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 156
Jan 30 15:05:02 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1068
Jan 30 15:05:07 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1988
Jan 30 15:05:12 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 852
Jan 30 15:05:17 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1764
Jan 30 15:05:22 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 636
Jan 30 15:05:27 box_u kernel: usb-uhci.c: interrupt, status 3, frame# 1548

<cat /proc/bus/usb/devices> gives:
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc= 34/900 us ( 4%), #Int=  2, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI Root Hub
S:  SerialNumber=dce0
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0557 ProdID=2202 Rev= 1.00
S:  Manufacturer=ATEN
S:  Product=CS124U V1.00
C:* #Ifs= 2 Cfg#= 1 Atr=60 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=01 Driver=hid
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl= 10ms
I:  If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=hid
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl= 10ms


Any ideas on how to get the switch to work?

Thanks,
	Murthy



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