V4L2CTL

Andre scancool at yahoo.com
Wed Feb 13 07:16:04 PST 2013


thank you David, that's a great tool, what came up didnt seem related to the
error:
--------------------------------------------------------------------------------------------------------------------------------------------
WARNING: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not
get parameters on device '/dev/video0'              
Additional debug info:                                                                                                          
v4l2src_calls.c(235): gst_v4l2src_set_capture ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:                                   
system error: Invalid argument  
---------------------------------------------------------------------------------------------------------------------------------------------
# v4l2-compliance                                                               
tfp401_open: usage 1                                                            
Running on 2.6.35tfp401_open: usage 2                                           
                                                                                
                                                                                
Driver Info:                                                                    
        Driver name   vidioc_g_ctrl                                             
: tfp401                                                                        
        Card type     : tfp401vidioc_s_ctrl                                     
                                                                                
        Bus info      :                                                         
        Driver version: 0.1.0                                                   
        Capabilities  : 0x05000001                                              
                Video Capture                                                   
                Read/Write                                                      
                Streaming                                                       
                                                                                
Compliance test for device /dev/video0 (not using libv4l2):                     
                                                                                
Required ioctls:                                                                
                fail: v4l2-compliance.cpp(217): string empty                    
        test VIDIOC_QUERYCAP: OK                                                
                                                                                
Allow for multiple opens:                                                       
        test second video open: OK                                              
                fail: v4l2-compliance.cpp(217): string empty                    
        test VIDIOC_QUERYCAP: OK                                                
                fail: v4l2-compliance.cpp(273): doioctl(node,
VIDIOC_G_PRIORITY)
        test VIDIOC_G/S_PRIORITY: FAIL                                          
                                                                                
Debug ioctls:                                                                   
        test VIDIOC_DBG_G_CHIP_IDENT: Not Supported                             
        test VIDIOC_DBG_G/S_REGISTER: Not Supported                             
        test VIDIOC_LOG_STATUS: Not Supported                                   
                                                                                
Input ioctls:                                                                   
        test VIDIOC_G/S_TUNER: Not Supported                                    
        test VIDIOC_G/S_FREQUENCY: Not Supported                                
        test VIDIOC_ENUMAUDIO: Not Supported                                    
        test VIDIOC_G/S/ENUMINPUT: Not Supported                                
        test VIDIOC_G/S_AUDIO: Not Supported                                    
        Inputs: 0 Audio Inputs: 0 Tuners: 0                                     
                                                                                
Output ioctls:                                                                  
        test VIDIOC_G/S_MODULATOR: Not Supported                                
        test VIDIOC_G/S_FREQUENCY: Not Supported                                
        test VIDIOC_ENUMAUDOUT: Not Supported                                   
        test VIDIOC_G/S/ENUMOUTPUT: Not Supported                               
        test VIDIOC_G/S_AUDOUT: Not Supported                                   
        Outputs: 0 Audio Outputs: 0 Modulators: 0                               
                                                                                
Control ioctls:                                                                 
                fail: v4l2-compliance.cpp(115): VIDIOC_QUERYCTRL returned
-68721
                fail: v4l2-test-controls.cpp(181): invalid queryctrl return
code
        test VIDIOC_QUERYCTRL/MENU: FAIL                                        
        test VIDIOC_G/S_CTRL: OK                                                
        test VIDIOC_G/S/TRY_EXT_CTRLS: Not Supported                            
        Standard Controls: 0 Private Controls: 0                                
                                                                                
Input/Output configuration ioctls:                                              
        test VIDIOC_ENUM/G/S/QUERY_STD: Not Supported                           
        test VIDIOC_ENUM/G/S/QUERY_DV_PRESETS: Not Supported                    
        test VIDIOC_G/S_DV_TIMINGS: Not Supported                               
                                                                                
Format ioctls:                                                                  
        test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK                      
        test VIDIOC_G_FBUF: Not Supported                                       
                fail: v4l2-test-formats.cpp(389): !pix.colorspace               
        test VIDIOC_G_FMT: FAIL                                                 
        test VIDIOC_G_SLICED_VBI_CAP: Not Supported                             
Total: 27 Succeeded: 24 Failed: 3 Warnings: 2                                   
# 





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