Robi wrote:
[snip]
> Great, that was it. Now I get a device listing. But none of my /dev/videoX
> work. V4L was installed and it created all the /dev/videoX entries, but
> any program that tries to access it returns an error. I'm not sure where
> to go from here. Also I'm trying to find a program that can stream
> directly from the cam, or take fast snapshots. Any suggestions?
The device nodes are only meaningful when there is an underlying device
to access.
> # cat /proc/bus/usb/devices
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 8 Spd=12 MxCh= 2
> B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
> D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 0.00
> S: Product=USB UHCI Root Hub
> S: SerialNumber=dce0
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
> T: Bus=01 Lev=01 Prnt=08 Port=01 Cnt=01 Dev#= 9 Spd=12 MxCh= 0
> D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0553 ProdID=0202 Rev= 0.00
> S: Manufacturer=STMicroelectronics
> S: Product=USB Dual-mode Camera
> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 70mA
> I: If#= 0 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> I: If#= 0 Alt= 1 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
and those two Driver=(none) entries mean that you don't have any
meaningful device underneath.
I can't tell without full logs, but it is pretty certain that you
don't have a cpia camera. It could be something else we support, but
it might be a new device. Maybe one of the maintainers can help
identify the device.
Brad
B
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