Em 05-10-2011 11:00, Mike Isely escreveu:
Mauro: With the line you've just added, then the " = arg" assignment in the immediate prior line is effectively dead code. Try this instead:
Look better:
v4l2_std_id *std = arg; + *std = V4L2_STD_ALL;
The above code is creating a pointer 'std' of the type 'v4l2_std_id', and initializing the pointer with the void *arg. Then, it is doing an indirect reference to the pointer, filling its contents with V4L2_STD_ALL value. The code above is sane (and, btw, it works). After those patches, the detection code will detect PAL/M or NTSC/M depending on the channel I tune here (my cable operator broadcasts some channels with one format, and others with the other one). Before this patch and the msp3400, it would return a mask with PAL/M and PAL/60 or a mask with all NTSC/M formats. Regards, Mauro.
case VIDIOC_QUERYSTD: { - v4l2_std_id *std = arg; + v4l2_std_id *std = V4L2_STD_ALL; ret = pvr2_hdw_get_detected_std(hdw, std); break; } -Mike On Tue, 4 Oct 2011, Mauro Carvalho Chehab wrote:Signed-off-by: Mauro Carvalho Chehab<mchehab@xxxxxxxxxx> --- drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 0d029da..ce7ac45 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -230,6 +230,7 @@ static long pvr2_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_QUERYSTD: { v4l2_std_id *std = arg; + *std = V4L2_STD_ALL; ret = pvr2_hdw_get_detected_std(hdw, std); break; }
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