Hi *, I am trying to get the Videology 21K142 camera (which is based on the Empia em28xx chipset) to work with our legacy display application. It works fine up to a point. However, when calling VIDIOC_S_FMT streaming does not work anymore. The calling sequence is STREAMOFF S_FMT REQBUFS QUERYBUF QBUF with MMAP based buffers. Sometimes it works, but after playing with it for a while (switching resolutions) it just stops delivering any images. Changing the resolution again does not help, but reopening the device seems to fix the problem (unless one is unlucky and our initial S_FMT call causes the problem immediately). Unfortunately, I don't know if there are any open source apps that can reproduce the problem, I did not find any allowing a live picture and resolution changes. I am open to suggestions and questions. Thanks for any help Torsten -- 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
