Hi Nate, On Thursday 29 January 2009, Dongsoo Kim wrote: > Thank you. > > So if V4L2_CID_EXPOSURE is for Exposure Value control, I think there > is no api for exposure metering. right? V4L2_CID_EXPOSURE controls the exposure time. This is often implemented through a mechanical or electronic shutter in the device. What kind of exposure metering do you have in mind ? Can you give us some details ? > Actually many of APIs for camera are missing I guess. You're probably right. The V4L1/V4L2 API have been developed for frame grabbers and extended to webcams. Now that high-end digital cameras get USB connectivity, the V4L2 API should be extended with new controls. Feel free to submit proposals for discussion on the linux-media mailing list. Best regards, Laurent Pinchart -- 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
