Yeah, tested on kernel 3.15 and it worked. The problem is that my board doesn't have Android HAL's compatible with that version, so i'm trying to find where is the difference. 2014-07-08 15:10 GMT-03:00 Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx>: > > Am 07.07.2014 19:58, schrieb Rafael Coutinho: >> I have a v4l2 video capture board that using kernel 2.6 with v4l2 >> em28xx driver 3.0.36 allows me to control brightness, contrast etc... >> However in kernel 3.2 with v4l2 em28xx driver version 3.2.0 it does not. >> >> This is what I get from the latest driver: >> root@android:/ # v4l2-ctl --info >> Driver Info (not using libv4l2): >> Driver name : em28xx >> Card type : EM2860/SAA711X Reference Design >> Bus info : usb-musb-hdrc.1-1 >> Driver version: 3.2.0 >> Capabilities : 0x05020051 >> Video Capture >> VBI Capture >> Sliced VBI Capture >> Audio >> Read/Write >> Streaming >> root@android:/ # v4l2-ctl -d 0 -l >> volume (int) : min=0 max=31 step=1 >> default=31 value=31 flags=slider >> mute (bool) : default=1 value=1 >> >> >> What could be wrong? > > Before kernel 3.10, the brightness (contrast, ...) controls are provided > by the subdevice drivers. > With kernel 3.10 I have introduced bridge level image controls, but they > are currently only used/activated if the subdevice doesn't already > provide them (as suggested by Mauro). > > Hth, > Frank Schäfer > -- Regards, Coutinho www.phiinnovations.com -- 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
