Hi Scott, On Thursday 26 April 2012 11:47:08 Scott Jiang wrote: > Hi Laurent, > > I'm writing a driver for adv7842 video decoder. This chip has 12 i2c > register maps. IO map is fixed to 0x20 and others are configurable. > I plan to use 0x20 as the subdevice addr to call > v4l2_i2c_new_subdev_board, and call i2c_new_device and i2c_add_driver > in i2c_probe to enumerate other i2c maps. Is it acceptable or any > other suggestion? You have to use i2c_new_dummy for all the non-fixed register maps. But I can save you a lot more time: we (Cisco) have a adv7842 driver already that is working for the most part (at least the parts that we need). I'll mail the driver to you separately. I intend to make it available in a public repository in the next few weeks. > > By the way, HDMI support seems under discussion, is there any > framework or guide now? There are two parts to HDMI: the first is a better API for selecting timings. The latest RFC patch series was just posted this week: http://www.spinics.net/lists/linux-media/msg46813.html I'm hopeful that this will make kernel 3.5. The second part is to add some missing HDMI-specific controls and two ioctls to set/get EDIDs. I'm preparing an RFC for that and I expect to post that next week. There is one final part: CEC support. We have implemented it, but the API needs more discussions. How to present CEC support to userspace seems to be a controversial issue. Regards, Hans > > Thanks, > Scott > -- > 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 -- 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
