I am trying to get usb 2 working on an OpenWrt access point.
When I load up the the echi_hcd module and a webcam driver, everything
seems fine, but any attempt to use the webcam results in no response
from the USB system:
May 26 15:59:48 (none) kern.info kernel: ehci_hcd 01:02.2: PCI device
1033:00e0
May 26 15:59:48 (none) kern.info kernel: ehci_hcd 01:02.2: irq 2, pci
mem c0134000
May 26 15:59:48 (none) kern.info kernel: usb.c: new USB bus registered,
assigned bus number 4
May 26 15:59:48 (none) kern.info kernel: ehci_hcd 01:02.2: USB 2.0
enabled, EHCI 1.00, driver 2003-Dec-29/2.4
May 26 15:59:48 (none) kern.info kernel: hub.c: USB hub found
May 26 15:59:48 (none) kern.info kernel: hub.c: 5 ports detected
May 26 15:59:48 (none) kern.info kernel: usb.c: USB disconnect on device
01:02.0-1 address 2
May 26 15:59:48 (none) kern.info kernel: usb.c: USB disconnect on device
01:02.0-1.4 address 3
May 26 15:59:49 (none) kern.info kernel: hub.c: new USB device
01:02.2-1, assigned address 2
May 26 15:59:49 (none) kern.info kernel: hub.c: USB hub found
May 26 15:59:49 (none) kern.info kernel: hub.c: 4 ports detected
May 26 15:59:49 (none) kern.info kernel: hub.c: new USB device
01:02.2-1.4, assigned address 3
May 26 15:59:49 (none) kern.info kernel: drivers/usb/spca5xx.c: USB
SPCA5XX camera found. Logitech QC IM/Connect
May 26 15:59:49 (none) kern.info kernel: drivers/usb/spca5xx.c:
[spca5xx_probe:5480] Camera type JPEG
May 26 15:59:50 (none) kern.info kernel: drivers/usb/zc3xx.h:
[zc3xx_config:558] Find Sensor HV7131R(c)
May 26 15:59:50 (none) kern.info kernel: drivers/usb/spca5xx.c:
[spca5xx_getcapability:1765] maxw 640 maxh 480 minw 176 minh 144
May 26 16:00:40 (none) kern.err kernel: drivers/usb/spca5xx.c: init
isoc: usb_submit_urb(0) ret -22
May 26 16:00:40 (none) kern.info kernel: drivers/usb/spca5xx.c:
[spca5xx_open:2437] DEALLOC error on init_IsocMay 26 16:00:40 (none)
kern.warn kernel:
I see the same behavior, but with a different error, using a different
webcam with a pwc v.10 driver, and usb_storage. I get isoc errors with
negative numbers.
I have no idea what the negative errors mean. From googling about, I
found some mention of this being a problem but no real solutions....
Is there anything I can do to diagnose this, and eventually to fix this?
Thanks,
--Yan
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