May 11, 2006 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 Channel Version 2 supported by many video displays.

### BUGS

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

### SEE ALSO

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

### HISTORY

The ddc device appeared in NetBSD4.0.

### AUTHORS

Garrett D'Amore <gdamore@NetBSD.org>