Hello,

My webcam doesn't work when it is plugged with a hub to my computer.

When my webcam is used with a hub, I have the following error log :

//loading of the device by gspca
usb 1-4.4: new full speed USB device using ehci_hcd and address 12
usb 1-4.4: configuration #1 chosen from 1 choice
gspca: probing 046d:0928
gspca: probe ok

//I'm launching svv, the soft shipped by Jean François Moine
gspca: usb_submit_urb [0] err -28
gspca: usb_submit_urb [0] err -28
gspca: usb_submit_urb [0] err -28
gspca: usb_submit_urb [0] err -28
gspca: usb_submit_urb [0] err -28
gspca: usb_submit_urb [0] err -28

When I use a direct acces to a USB port of my computer, without a hub
between the host and the camera, the camera is working perfectly, and I
have not this problem.

The complete lsusb map is :
 
Bus 001 Device 012: ID 046d:0928 Logitech, Inc. QuickCam Express
Bus 001 Device 011: ID 152d:2336 JMicron Technology Corp. / JMicron USA
Technology Corp.
Bus 001 Device 004: ID 046d:c404 Logitech, Inc. TrackMan Wheel
Bus 001 Device 003: ID 0603:00f2 Novatek Microelectronics Corp.
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

The usb string id for my webcam is :
ID 046d:0928 Logitech, Inc. QuickCam Express

The usb string id for my HUB is :
ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB

I'm currently using archlinux, with a 2.6.28.6 kernel. I'm using the
gspca_main and gspca_spca561 modules.

cat /proc/version :
Linux version 2.6.28-ARCH (root@T-POWA-LX) (gcc version 4.3.3 (GCC) ) #1
SMP PREEMPT Wed Feb 18 21:27:38 UTC 2009

I just wanted help maybe for the gspca driver if it could be. Thank you
to Jean François Moine for gspca.

-- 

David Kremer

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