Hi Tomi, On 09/15/2011 07:47 AM, Tomi Valkeinen wrote: > Hi, > > I'm a bit confused how a backlight device and a fb device should be > "connected". > > In this particular case the OMAP 4430SDP board has an LCD panel > controlled by omapfb (and omapdss on the lower level) with a backlight > controlled by pwm_backlight (and twl6030-pwm on the lower level). > > Both omapfb and pwm_backlight work fine, but they don't know anything > about each other, so, for example, blanking the fb via omapfb leaves the > backlight on. > > Is there something I'm missing, or is the only solution to have some > custom code to connect the fb and the bl, and handle it that way? I don't know anything about backlight but recently there was a patch that affected the same area you mention so it might give an idea "[PATCH] FB: add early fb blank feature." http://marc.info/?l=linux-fbdev&m=131554458720940&w=2 Best regards, Florian Tobias Schandinat > > Tomi > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fbdev" 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-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
