How do one calculate the fb_videomode parameters in linux kernel?

Question

I would like to write a driver to http://www.trulydisplays.com/tft/specs/3.5in%20480x800%20TFT480800-25-E%20Spec.pdf How do I calculate all the following params:

struct fb_videomode {
    const char *name;   /* optional */
    u32 refresh;        /* optional */
    u32 xres;
    u32 yres;
    u32 pixclock;
    u32 left_margin;
    u32 right_margin;
    u32 upper_margin;
    u32 lower_margin;
    u32 hsync_len;
    u32 vsync_len;
    u32 sync;
    u32 vmode;
    u32 flag;
};

I found this document that might be of help https://www.kernel.org/doc/Documentation/fb/framebuffer.txt Good luck — Mahendra Gunawardena, Jan 07 '14 at 16:31

score 0 · Accepted Answer · edited Feb 09 '13 at 08:56

0

I hope those fields mentioned are available in the EDID of the display device.

edited Feb 09 '13 at 08:56

0x90

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answered Feb 05 '13 at 12:21

Jeyaram

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How do one calculate the fb_videomode parameters in linux kernel?

1 Answers1