Re: [Linux-fbdev-devel] Two bug fixes for cyber2000fb

[Geert U. <ge...@li...>]

On 29 Dec 2001, Johan Bolmsjo wrote:
> 2) var.bits_per_pixel returned is 15 for RGB1555 and RGB565 modes.
>    var.bits_per_pixel should be 16 for both these modes. One should
>    then use the colour bit masks to see which mode is used.
> 
> I'm not 100% sure on my reasoning on 2) but I think it has been up
> on the list before.

Yes, var.bits_per_pixel must be the physical size of one pixel. The separation
in different color channels must be reflected in the color bitfields.

> Is there any test program that tests all frame-buffer modes to detect
> ill behaviours in frame-buffer drivers? Not all drivers seem to work
> the same way..

CVS module fbtest from project linux-fbdev at SourceForge.

Someone should fill in the (currently empty) routines {fix,var}_validate(), and
some tests to test all (how do you do that?) frame-buffer modes.

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@li...

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