[Gridflow-dev] webcam woes

Michal Seta djiamnot at gmail.com
Wed May 23 23:23:43 EDT 2007


Hello,

I am getting the following error when trying to open a /dev/videoX (a
logitech webcam in this case).

error: ArgumentError: got Symbol instead of Symbol in
FormatVideoDev::initialize(Symbol mode, String filename, Symbol
option)
format/videodev.c.fcs:751:in `static Ruby
FormatVideoDev::initialize_wrap(int, Ruby*, Ruby)'
/home/mis/cvs/gridflow/format/main.rb:177:in `initialize'
/home/mis/cvs/gridflow/format/main.rb:177:in `new'

error: NameError: undefined method "send_in" for nil in class NilClass
/home/mis/cvs/gridflow/base/main.rb:358:in `method_missing'

this is gf checked out from cvs on May 22, 2007 which identifies
itself as follows:

[gf] This is GridFlow 0.9.0 within Ruby version 1.8.5-2006-08-25
[gf] base/main.c was compiled on May 22 2007, 23:06:12
[gf] LTI support not found (no such file to load -- basedata)

this occurs on a Ubuntu Feisty,

#uname -a
Linux ypsilon 2.6.20-15-lowlatency #2 SMP PREEMPT Sun Apr 15 07:39:03
UTC 2007 i686 GNU/Linux

#cat /proc/bus/usb/devices #other usb devices ommited:
T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 1.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS= 8 #Cfgs=  1
P:  Vendor=046d ProdID=0840 Rev= 1.00
S:  Product=Camera
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=quickcam
E:  Ad=81(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   1 Ivl=16ms
I:  If#= 0 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=quickcam
E:  Ad=81(I) Atr=01(Isoc) MxPS=1023 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   1 Ivl=16ms

Pd version 0.40.2-extended-2007-05-21

Any leads?
thanks

./MiS



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