Hi, > -----Original Message----- > From: linux-media-owner@xxxxxxxxxxxxxxx [mailto:linux-media- > owner@xxxxxxxxxxxxxxx] On Behalf Of Laurent Pinchart > Sent: Friday, December 30, 2011 9:16 AM > To: HeungJun, Kim > Cc: linux-media@xxxxxxxxxxxxxxx; mchehab@xxxxxxxxxx; hverkuil@xxxxxxxxx; > sakari.ailus@xxxxxx; s.nawrocki@xxxxxxxxxxx; kyungmin.park@xxxxxxxxxxx > Subject: Re: [RFC PATCH 0/4] Add some new camera controls > > Hi, > > On Thursday 29 December 2011 07:15:46 HeungJun, Kim wrote: > > On Wednesday, December 28, 2011 11:01 PM Laurent Pinchart wrote: > > > On Wednesday 28 December 2011 07:23:44 HeungJun, Kim wrote: > > > > Hi everyone, > > > > > > > > This RFC patch series include new 4 controls ID for digital camera. > > > > I about to suggest these controls by the necessity enabling the M-5MOLS > > > > sensor's function, and I hope to discuss this in here. > > > > > > Thanks for the patches. > > > > > > The new controls introduced by these patches are very high level. Should > > > they be put in their own class ? I also think we should specify how > > > those high- level controls interact with low-level controls, otherwise > > > applications will likely get very confused. > > > > I did not consider yet, but I think it's first to define about what > > low-/high- is. I think this is not high- level controls. And, honestly, I > > don't understand it's really important to categorize low-/high-, or not. > > > > IMHO, The importance is the just complexity of interacting with each > > modules. If this means the level of low-/high-, I can understand this. > > But I'm wrong, please explain this. :) > > Low level controls are usually handled in hardware and pretty much self- > contained. High level controls are usually software algorithms (possibly > running on the sensor itself) that modify low level controls behind the scene. > > If a sensor exposes both an exposure time control and a scene mode control > that modifies exposure time handling, documentation of the scene mode control > must explain how the two interacts and what applications can and can't do. Ok, thanks for the explanation. I should include the ISP's contents in the documentation, and this might be the key I explain easily. I'll prepare the next RFC add the more details in the document. Probably, it seems to be lack of explanation about these controls I suggested. Regards, Heungjun Kim > > > There is some different story, I just got the N900 some days ago :). > > The purpose is just understanding Nokia and TI OMAP camera architecture > > well. Probably, it helps for me to talk more easily, and I'll be able to > > speak more well > > with omap workers - you and Sakari. > > -- > 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 -- 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
