ddc(4) - NetBSD Manual Pages

DDC(4)                  NetBSD Kernel Interfaces Manual                 DDC(4)


NAME

     ddc -- VESA Display Data Channel V2 devices


SYNOPSIS

     ddc at iic? addr 0x50


DESCRIPTION

     The ddc driver provides support for accessing the VESA Display Data Chan-
     nel Version 2 supported by many video displays.


SEE ALSO

     iic(4), ddc(9), edid(9)


HISTORY

     The ddc device appeared in NetBSD 4.0.


AUTHORS

     Garrett D'Amore <gdamore@NetBSD.org>


BUGS

     This driver does not provide any mechanism for access from user applica-
     tions.  Its only use at this point is to provide a means for framebuffer
     device drivers to query monitor description data (EDID) using a special-
     ized in-kernel API.  No support for sending control commands to display
     devices is provided.

NetBSD 9.1                       May 11, 2006                       NetBSD 9.1