Dear Guennadi > > If pixfmt is 0, it said "Format 0 not found" to me. > > Yes, this will be fixed by this: > > http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg00161.html wow !! I will use this. thank you. > > If sh_mobile_ceu use V4L2_FIELD_NONE on sh_mobile_ceu_init_videobuf, > > kernel will not run this BUG_ON. > > But tw9910 and I want sh_mobile_ceu_init_videobuf to use V4L2_FIELD_ANY. > > Do you remember this problem ? > > Well, I looked through the old emails, but chenged a few things since > then, so I am not sure what the behaviour would be like now, if we do > switch back to _NONE? It looks like you should be prepared to run without > a call to S_FMT, which also means, your ->field should have a value other > than _ANY. What would break if you use _ANY now? hmm. difficult English for me... if sh_mobile_ceu use ANY -> ov772x can not use capture_example. -> run BUG_ON if sh_mobile_ceu use NONE -> tw9910 can not works. -> try_fmt needs ANY or INTERLACED. if sh_mobile_ceu use INTERLACED, ov772x and tw9910 are works well now. but this is niche fix and I don't know this is correct way or not. if sh_mobile_ceu use NONE, tw9910 needs some modify on try_fmt. > > And capture_example doesn't works even If > > sh_mobile_ceu_init_videobuf use V4L2_FIELD_NONE. > > It said "select timeout" to me. > > I don't know why. > > This is probably because you don't setup a default mode in > sh_mobile_ceu_camera.c or ov772x.c if S_FMT is never called. This should > be fixed. I'm not sure if other drivers would deliver anything meaningful > without a call to S_FMT - has to be tested / fixed... (snip) > > In this case, shoud ov772x use defaul color format > > when S_CROP order ? > > The thing is that older versions of capture.c always called S_FMT, newer > ones don't unless forced per "-f" switch. Yes. Now, sh_mobile_ceu :: set_bus_param must be called to use camera. We need -f option. Thank you. Best regards -- Kuninori Morimoto -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
