GNU Linux-libre 4.19.211-gnu1
[releases.git] / Documentation / fb / sm712fb.txt
1 What is sm712fb?
2 =================
3
4 This is a graphics framebuffer driver for Silicon Motion SM712 based processors.
5
6 How to use it?
7 ==============
8
9 Switching modes is done using the video=sm712fb:... boot parameter.
10
11 If you want, for example, enable a resolution of 1280x1024x24bpp you should
12 pass to the kernel this command line: "video=sm712fb:0x31B".
13
14 You should not compile-in vesafb.
15
16 Currently supported video modes are:
17
18 [Graphic modes]
19
20 bpp | 640x480  800x600  1024x768  1280x1024
21 ----+--------------------------------------------
22   8 | 0x301    0x303    0x305    0x307
23  16 | 0x311    0x314    0x317    0x31A
24  24 | 0x312    0x315    0x318    0x31B
25
26 Missing Features
27 ================
28 (alias TODO list)
29
30         * 2D acceleratrion
31         * dual-head support