linux - Matlab imaqhwinfo cannot recognize my USB webcam -


i have installed matlab 2015a. , want run opentld matlab... compiled it, problem matlab cannot find usb camera... output is:

imaqhwinfo

ans = 

installedadaptors: {'dcam'  'gentl'  'gige'  'linuxvideo'}     matlabversion: '8.5 (r2015a)'       toolboxname: 'image acquisition toolbox'    toolboxversion: '4.9 (r2015a)'

imaqhwinfo('linuxvideo')

ans = 

   adaptordllname: '/home/tamta/documents/matlab/supportpackages/r2015a/osgenericvideointerface/toolbox/imaq/supportpackages/genericvideo/ada...' adaptordllversion: '4.9 (r2015a)'       adaptorname: 'linuxvideo'         deviceids: {1x0 cell}        deviceinfo: [1x0 struct]

i searched solution on internet.. , tried run: "ld_preload=/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so sudo matlab" ,

imaqreset (matlab command prompt) nothing changed.. "cheese" works on terminal. can do?

regards , in advance,


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