Hello, I'm having two uncertainties about video4linux2. 1) About how to use VIDIOC_DQBUF. From the v4l2 site: "VIDIOC_DQBUF immediately returns an error if there is no buffer ready (it never blocks)." However, when I look in bttc-driver.c, the ioctl handler (VIDIOC_DQBUF): "retval = videobuf_waiton(&buf->vb,0,1);" Which (I'd say) does block for the frame to be completed capturing. Am I wrong here? Or is the v4l2 API documentation (http://thedirks.org/v4l2/) outdated and has this been changed? 2) Would it be possible (i.e. allowed) to include a special case VIDIOC_QBUF with index = -1 in the zoran driver which means to dequeue (as in 'cancel these queues', not as in 'sync on all buffers') all buffers and thus effectively stop capturing directly? This is what the zoran driver is able to do in v4l1 and it'd be nice to have a similar feature in v4l2. Is this allowed? Thanks, Ronald -- - .-. - /V\ | Ronald Bultje <rbultje@xxxxxxxxxxxxxxxxxxx> - // \\ | Running: Linux 2.4.18-XFS and OpenBSD 3.0 - /( )\ | http://ronald.bitfreak.net/ - ^^-^^
