/dev/vide0

davidsrsb · 08-15-2006, 05:06 AM

I am trying to get my ZStar webcam running on 2.6.16.27 kernel.
It used to run with 2.4.32

I have tried the spca5xx driver and the zc0301 driver
The v4l-info complains /dev/video0 does not exist -true

Ilgar · 08-15-2006, 05:42 PM

I, too, have trouble using spca5xx with 2.6.16. The driver compiles, I can modprobe, but it doesn't work. Some things have changed with 2.6.16, as mentioned on the spca5xx driver page:

Quote:

v4l1 is now deprecated, that mean spca5xx have to change, this version set as spca5xx-v4l1-Goodbye, is the last one supporting both Kernel 2.4.x and 2.6.x series !!
a new branch code name GSPCA-V1 is born and only support kernel upto 2.6.16. the new name:
"Generic Softwares Package for Camera Adaptator" mean that the package should provided a Linux kernel driver, a smart webcam application and in the futur a userspace driver.
of course available in GPL source code

pbhj · 08-15-2006, 05:54 PM

I suspect you need to run a mknod command .. but I wouldn't know which one.

Perhaps something like :
# mknod /dev/video0 c 81 0
# chmod a+r /dev/video0
# ln -s /dev/video0 /dev/video

as it says at http://qce-ga.sourceforge.net/faq.html against Q9 ?

Also, what connection are these webcams, USB? What do you get in dmesg or syslog or wherever when they are connected. What does lsusb report?

HTH

Ilgar · 08-15-2006, 05:59 PM

Hmm yes I should've checked dmesg. On modprobe there's no error but when an application tries to use it, you can see errors:

Code:

/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: USB SPCA5XX camera found. Type Intel Easy PC Camera CS110 (SPCA508+PB100)
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_probe:5480] Camera type YUVY 
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_getcapability:1765] maxw 352 maxh 288 minw 160 minh 120
usbcore: registered new driver spca5xx
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: spca5xx driver 00.60.00 registered
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: init isoc: usb_submit_urb(0) ret -28
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_open:2437]  DEALLOC error on init_Isoc

ohci_hcd 0000:00:02.0: leak ed edbcd2c0 (#81) state 2
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: init isoc: usb_submit_urb(0) ret -28
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_open:2437]  DEALLOC error on init_Isoc

ohci_hcd 0000:00:02.0: leak ed edbcd300 (#81) state 2
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: init isoc: usb_submit_urb(0) ret -28
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_open:2437]  DEALLOC error on init_Isoc

ohci_hcd 0000:00:02.0: leak ed edbcd340 (#81) state 2
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: init isoc: usb_submit_urb(0) ret -28
/usr/local/pr/drivers/spca5xx-20060501/drivers/usb/spca5xx.c: [spca5xx_open:2437]  DEALLOC error on init_Isoc

vodunvibe · 09-02-2006, 09:25 AM

Hi,

When other USB devices are present on the same host controller bus as the camera, the bandwidth requirements of the spca5xx driver are not being met, with some hardware configurations.
The spca5xx driver is asking for more bandwidth than is available which results in the following error messages:

No space left on device
can't open /dev/video0: No space left on device.

Please search ubuntuforums . org for my howto.
Howto Fix the “No space left on device” error message and Install the Spca5xx driver

This is my second post, I cannot post the url.
I hope that it helps you resolve your issues.
w w w . ubuntu forums . org / showthread.php?t=247646

davidsrsb · 09-02-2006, 11:26 AM

I must have another go with this now that I am on the 2.6.17.11 kernel