Re: [libdc1394-devel] dc1394_dma_setup_capture problems

[Damien D. <da...@do...>]

On Thu, 2006-01-19 at 17:54 +0100, Mario Cervetto wrote:
> Hello all!
> 
>     I have a problem again...
> 
>     I wrote a program to grab a frame from a pixelink A741
>     camera. I need to acquire images from a microscope at
>     different focal planes. To do so I have a program
>     that acquires an image from the camera using the libdc1394
>     version2 libraries, then it moves the microscope plate
>     to get another focal plane, re-acquires the image,
>     removes the plate and so on...
> 
>     Things are O.K. for a certain number of steps, but always
>     the program crashes with the following error:
> 
>         (dc1394_capture.c) unable to open video1394 device /dev/video1394/0
>         dc1394_capture.c: Too many open files
>         Libdc1394 error (dc1394_capture.c:dc1394_dma_setup_capture:469): 
> Generic failure : Could not setup DMA capture
> 
>     I checked that all files I open in the program are correctly
>     closed...so I don't understand where is the bug: does anyone
>     have any idea for it?

Maybe you don't call dc1394_dma_release_camera() before doing a new dma
capture setup?

Damien
-- 
  _    Damien 'Takahara' Douxchamps, PhD
 ('-   Post-doctoral investigator
 //\   Image Processing Group, NAIST
 V_/_  http://chihara.aist-nara.ac.jp/