From f23c20c83d523e5f8cda1f8f7ed52fe6afffbe29 Mon Sep 17 00:00:00 2001 From: Ma Ling Date: Thu, 26 Mar 2009 19:26:23 +0800 Subject: drm: detect hdmi monitor by hdmi identifier (v3) Sometime we need to communicate with HDMI monitor by sending audio or video info frame, so we have to know monitor type. However if user utilize HDMI-DVI adapter to connect DVI monitor, hardware detection will incorrectly show the monitor is HDMI. HDMI spec tell us that any device containing IEEE registration Identifier will be treated as HDMI device. The patch intends to detect HDMI monitor by this rule. Signed-off-by: Ma Ling Signed-off-by: Dave Airlie --- include/drm/drm_crtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/drm/drm_crtc.h') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 9022b246818..3c1924c010e 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -732,4 +732,5 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mode_gamma_set_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern bool drm_detect_hdmi_monitor(struct edid *edid); #endif /* __DRM_CRTC_H__ */ -- cgit v1.2.3-70-g09d2