Documentation/fb/s3fb.rst

2 s3fb - fbdev driver for S3 Trio/Virge chips
15 	- only PCI bus supported
16 	- only BIOS initialized VGA devices supported
17 	- probably not working on big endian
27 	*  8 bpp pseudocolor mode (with 18bit palette)
29 	* 24 bpp truecolor mode (RGB 888) on (only on Virge VX)
30 	* 32 bpp truecolor mode (RGB 888) on (not on Virge VX)
31 	* text mode (activated by bpp = 0)
32 	* interlaced mode variant (not available in text mode)
33 	* doublescan mode variant (not available in text mode)
38 Text mode is supported even in higher resolutions, but there is limitation to
39 lower pixclocks (maximum usually between 50-60 MHz, depending on specific
40 hardware, i get best results from plain S3 Trio32 card - about 75 MHz). This
41 limitation is not enforced by driver. Text mode supports 8bit wide fonts only
42 (hardware limitation) and 16bit tall fonts (driver limitation). Text mode
45 There are two 4 bpp modes. First mode (selected if nonstd == 0) is mode with
46 packed pixels, high nibble first. Second mode (selected if nonstd == 1) is mode
47 with interleaved planes (1 byte interleave), MSB first. Both modes support
62 	* 24 bpp mode support on more cards
64 	* support for fontheight != 16 in text mode
70 	* acceleration support (8514-like 2D, Virge 3D, busmaster transfers)
77 	* cursor disable in text mode doesn't work
78 	* text mode broken on S3 Trio64 V2/DX
81 --