0001 What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha
0002 Date: May 2012
0003 Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
0004 Description:
0005 This file is only available on fb[0-9] devices corresponding
0006 to overlay planes.
0007
0008 Stores the alpha blending value for the overlay. Values range
0009 from 0 (transparent) to 255 (opaque). The value is ignored if
0010 the mode is not set to Alpha Blending.
0011
0012 What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode
0013 Date: May 2012
0014 Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
0015 Description:
0016 This file is only available on fb[0-9] devices corresponding
0017 to overlay planes.
0018
0019 Selects the composition mode for the overlay. Possible values
0020 are:
0021
0022 - 0 - Alpha Blending
0023 - 1 - ROP3
0024
0025 What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position
0026 Date: May 2012
0027 Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
0028 Description:
0029 This file is only available on fb[0-9] devices corresponding
0030 to overlay planes.
0031
0032 Stores the x,y overlay position on the display in pixels. The
0033 position format is `[0-9]+,[0-9]+`.
0034
0035 What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3
0036 Date: May 2012
0037 Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
0038 Description:
0039 This file is only available on fb[0-9] devices corresponding
0040 to overlay planes.
0041
0042 Stores the raster operation (ROP3) for the overlay. Values
0043 range from 0 to 255. The value is ignored if the mode is not
0044 set to ROP3.
