2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 13:43:55 +08:00
linux-next/Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb
Laurent Pinchart c5deac3c9b fbdev: sh_mobile_lcdc: Implement overlays support
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2012-06-20 10:02:54 +02:00

45 lines
1.5 KiB
Plaintext

What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha
Date: May 2012
Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Description:
This file is only available on fb[0-9] devices corresponding
to overlay planes.
Stores the alpha blending value for the overlay. Values range
from 0 (transparent) to 255 (opaque). The value is ignored if
the mode is not set to Alpha Blending.
What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode
Date: May 2012
Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Description:
This file is only available on fb[0-9] devices corresponding
to overlay planes.
Selects the composition mode for the overlay. Possible values
are
0 - Alpha Blending
1 - ROP3
What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position
Date: May 2012
Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Description:
This file is only available on fb[0-9] devices corresponding
to overlay planes.
Stores the x,y overlay position on the display in pixels. The
position format is `[0-9]+,[0-9]+'.
What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3
Date: May 2012
Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Description:
This file is only available on fb[0-9] devices corresponding
to overlay planes.
Stores the raster operation (ROP3) for the overlay. Values
range from 0 to 255. The value is ignored if the mode is not
set to ROP3.