On Fri, Sep 04, 2015 at 11:59:58AM +0200, Alex Vazquez wrote: > Hi,all! > > I'm using atmel-hlcdc driver to control a LCD panel and an application uses > the /dev/fb0 framebuffer created by the driver. The display works fine > except that the panel's standard orientation is landscape mode (480x275) > and I need to use it in portrait mode (275x480). > > I know that the driver allow rotation but is only for the overlays layers, > and not the baselayer. > > I have tested with modetest and i can do what i want. > > I want to know if is posible create a device framebuffer from overlay layer > use libdrm (e.g. /dev/fb1). Legacy fbdev support really is only for debugging and stuff like that, if you have a kms driver I highly recommend that you just use the dumb buffer api and assign them to overlays like modetest. Ofc it would be technically possible to create more legacy framebuffer devices, but I don't think that's something which would be received with enthusiasm by upstream. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
