I have a Creative webcam which worked w/ openSuSE 10.3, but cannot be found w/ 11.0 (32 bit version). I thought it was permissions on the USB related /dev entry, since I had similar problems w/ connecting to my GPS. The GPS is better (well, I still cannot get gpsd working) w/ change in permissions, but still no webcam. Also, tried Skype/Kopete as root and no luck.

Hardware: IBM ThinkPad T42
kernel: 2.6.25.11-0.1-default

lsusb:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 041e:401f Creative Technology, Ltd Webcam Notebook
Bus 003 Device 002: ID 091e:0003 Garmin International GPSmap (various models)
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci:
00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 01)
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]
02:00.0 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus Controller (rev 01)
02:00.1 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus Controller (rev 01)
02:01.0 Ethernet controller: Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile) (rev 03)
02:02.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network Connection (rev 05)

dmesg | grep usb:
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
usb usb1: configuration #1 chosen from 1 choice
sda:<6>usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: UHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.25.11-0.1-default uhci_hcd
usb usb1: SerialNumber: 0000:00:1d.0
usb usb2: configuration #1 chosen from 1 choice
usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: EHCI Host Controller
usb usb2: Manufacturer: Linux 2.6.25.11-0.1-default ehci_hcd
usb usb2: SerialNumber: 0000:00:1d.7
usb usb3: configuration #1 chosen from 1 choice
usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb3: Product: UHCI Host Controller
usb usb3: Manufacturer: Linux 2.6.25.11-0.1-default uhci_hcd
usb usb3: SerialNumber: 0000:00:1d.1
usb usb4: configuration #1 chosen from 1 choice
usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb4: Product: UHCI Host Controller
usb usb4: Manufacturer: Linux 2.6.25.11-0.1-default uhci_hcd
usb usb4: SerialNumber: 0000:00:1d.2
usb 3-1: new full speed USB device using uhci_hcd and address 2
usb 3-1: configuration #1 chosen from 1 choice
usb 3-1: New USB device found, idVendor=091e, idProduct=0003
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usbcore: registered new interface driver hiddev
usbcore: registered new interface driver usbhid
drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver
usb 3-1: reset full speed USB device using uhci_hcd and address 2
usb 3-1: reset full speed USB device using uhci_hcd and address 2
usb 3-1: reset full speed USB device using uhci_hcd and address 2
usb 3-2: new full speed USB device using uhci_hcd and address 3
usb 3-2: configuration #1 chosen from 1 choice
usb 3-2: New USB device found, idVendor=041e, idProduct=401f
usb 3-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-2: ZC0301[P] Image Processor and Control Chip detected (vid/pid 0x041E:0x401F)
usb 3-2: No supported image sensor detected
usbcore: registered new interface driver zc0301

ls -lah /dev/usb*:
crw-rw---- 1 root usb 253, 0 2008-08-25 17:32 usbdev1.1_ep00
crw-rw---- 1 root usb 253, 1 2008-08-25 17:32 usbdev1.1_ep81
crw-rw---- 1 root usb 253, 2 2008-08-25 17:32 usbdev2.1_ep00
crw-rw---- 1 root usb 253, 3 2008-08-25 17:32 usbdev2.1_ep81
crw-rw---- 1 root usb 253, 4 2008-08-25 17:32 usbdev3.1_ep00
crw-rw---- 1 root usb 253, 5 2008-08-25 17:32 usbdev3.1_ep81
crw-rw---- 1 root usb 253, 8 2008-08-25 20:46 usbdev3.4_ep00
crw-rw---- 1 root usb 253, 9 2008-08-25 20:46 usbdev3.4_ep81
crw-rw---- 1 root usb 253, 10 2008-08-25 20:46 usbdev3.4_ep82
crw-rw---- 1 root usb 253, 6 2008-08-25 17:32 usbdev4.1_ep00
crw-rw---- 1 root usb 253, 7 2008-08-25 17:32 usbdev4.1_ep81

ls -lah /dev/vide*:
lrwxrwxrwx 1 root root 6 2008-08-25 20:46 video -> video0
crw-rw----+ 1 root video 81, 0 2008-08-25 20:46 video0

ls -lahR usb:
usb:
total 0
drwxrwxr-x 6 root usb 120 2008-08-25 17:32 .
drwxr-xr-x 3 root root 60 2008-08-25 17:32 ..
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 001
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 002
drwxrwxr-x 2 root usb 80 2008-08-25 20:46 003
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 004

usb/001:
total 0
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 .
drwxrwxr-x 6 root usb 120 2008-08-25 17:32 ..
crw-rw-r-- 1 root usb 189, 0 2008-08-25 17:32 001

usb/002:
total 0
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 .
drwxrwxr-x 6 root usb 120 2008-08-25 17:32 ..
crw-rw-r-- 1 root usb 189, 128 2008-08-25 17:32 001

usb/003:
total 0
drwxrwxr-x 2 root usb 80 2008-08-25 20:46 .
drwxrwxr-x 6 root usb 120 2008-08-25 17:32 ..
crw-rw-r-- 1 root usb 189, 256 2008-08-25 17:32 001
crw-rw-r-- 1 root usb 189, 259 2008-08-25 20:46 004

usb/004:
total 0
drwxrwxr-x 2 root usb 60 2008-08-25 17:32 .
drwxrwxr-x 6 root usb 120 2008-08-25 17:32 ..
crw-rw-r-- 1 root usb 189, 384 2008-08-25 17:32 001