Hello,
I've noticed a problem using a card identified as NEC Corporation USB
(rev 41) pci card, when the kernel is compiled without OHCI.
If I boot the 2.6.13 kernel with a usb 2 device attached the kernel
will hang, and I have to use the power button to reboot. Alternatively
if I connec the device after boot the kernel logs just show
Dec 27 13:23:16 pentium3 kernel: usb 1-1: new high speed USB device
using ehci_hcd and address 2
and the usb system hangs. i.e a cat /proc/bus/usb/devices shows no
output (deadlock?)
Initially I gave up with this card and when out and bought two more usb
cards, both of which worked.
One of these was identified as NEC Corporation USB (rev 43), which did
not suffer this problem. i.e. worked with the original kernel, when a
USB 2 device was attached.
here is lspci -v | grep HCI
0:04.2 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0
controller] (rev 10) (prog-if 00 [UHCI])
00:04.3 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0
controller] (rev 10) (prog-if 00 [UHCI])
00:09.0 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0
controller] (rev 61) (prog-if 00 [UHCI])
00:09.1 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0
controller] (rev 61) (prog-if 00 [UHCI])
00:09.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 63) (prog-if
20 [EHCI])
00:0a.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
00:0a.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
00:0a.2 USB Controller: NEC Corporation USB 2.0 (rev 02) (prog-if 20 [EHCI])
00:0d.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
00:0d.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
00:0d.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
Incidentally my motherboard, ASUS A7V is incorrectly identified as
having a VT6202 USB 2.0 controller.
Just to confirm, if I compile the kernel with OHCI I've no problems with
this card.
Thanks.
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