1What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha 2Date: May 2012 3Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 4Description: 5 This file is only available on fb[0-9] devices corresponding 6 to overlay planes. 7 8 Stores the alpha blending value for the overlay. Values range 9 from 0 (transparent) to 255 (opaque). The value is ignored if 10 the mode is not set to Alpha Blending. 11 12What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode 13Date: May 2012 14Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 15Description: 16 This file is only available on fb[0-9] devices corresponding 17 to overlay planes. 18 19 Selects the composition mode for the overlay. Possible values 20 are: 21 22 - 0 - Alpha Blending 23 - 1 - ROP3 24 25What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position 26Date: May 2012 27Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 28Description: 29 This file is only available on fb[0-9] devices corresponding 30 to overlay planes. 31 32 Stores the x,y overlay position on the display in pixels. The 33 position format is `[0-9]+,[0-9]+`. 34 35What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3 36Date: May 2012 37Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 38Description: 39 This file is only available on fb[0-9] devices corresponding 40 to overlay planes. 41 42 Stores the raster operation (ROP3) for the overlay. Values 43 range from 0 to 255. The value is ignored if the mode is not 44 set to ROP3. 45