Re: mx3_camera and DMA / double buffering

2011-01-17 Thread Markus Niebel
Am 17.01.2011 17:27, schrieb Guennadi Liakhovetski: On Mon, 17 Jan 2011, Markus Niebel wrote: Hello, sorry for the __very__ long timeout. The doublebuffering is indeed enabled when the second buffer is queued - my fault, should have read the code more carfully. Good. But in this way a new

Re: mx3_camera and DMA / double buffering

2011-01-17 Thread Guennadi Liakhovetski
On Mon, 17 Jan 2011, Markus Niebel wrote: > Hello, > > sorry for the __very__ long timeout. The doublebuffering is indeed enabled > when the second buffer is queued - my fault, should have read the code more > carfully. Good. > But in this way a new question arises: > > in soc_camera.c, functi

Re: mx3_camera and DMA / double buffering

2011-01-17 Thread Markus Niebel
Am 03.12.2010 21:07, schrieb Guennadi Liakhovetski: On Fri, 3 Dec 2010, Markus Niebel wrote: Hello, thank you for your answer. I think there is a problem, but I did not describe it correctly. See my comments On Thu, 2 Dec 2010, Markus Niebel wrote: Hello, we're working with a special came

Re: mx3_camera and DMA / double buffering

2010-12-03 Thread Guennadi Liakhovetski
On Fri, 3 Dec 2010, Markus Niebel wrote: > Hello, > > thank you for your answer. I think there is a problem, but I did not describe > it correctly. See my comments > > > On Thu, 2 Dec 2010, Markus Niebel wrote: > > > > > Hello, > > > > > > we're working with a special cameraboard (CCD + Analog

Re: mx3_camera and DMA / double buffering

2010-12-03 Thread Markus Niebel
Hello, thank you for your answer. I think there is a problem, but I did not describe it correctly. See my comments On Thu, 2 Dec 2010, Markus Niebel wrote: Hello, we're working with a special cameraboard (CCD + Analog Frontend IC). Using the soc_camera stack on the i.MX35 (mx3_camera) the

Re: mx3_camera and DMA / double buffering

2010-12-02 Thread Guennadi Liakhovetski
On Thu, 2 Dec 2010, Markus Niebel wrote: > Hello, > > we're working with a special cameraboard (CCD + Analog Frontend IC). Using the > soc_camera stack on the i.MX35 (mx3_camera) the following problem arises: > > VIDIOC_STREAMON calls soc_camera_streamon which calls videobuf_streamon - when > it

mx3_camera and DMA / double buffering

2010-12-02 Thread Markus Niebel
Hello, we're working with a special cameraboard (CCD + Analog Frontend IC). Using the soc_camera stack on the i.MX35 (mx3_camera) the following problem arises: VIDIOC_STREAMON calls soc_camera_streamon which calls videobuf_streamon - when iterating the buffers in the queue the function mx3_