commit 17339233a00577b75235cf07908fefc5f168b751
author Daniel Stone <daniels@collabora.com> Sat Nov 28 12:09:47 2015 +0000
committer Daniel Stone <daniels@collabora.com> Mon Dec 12 16:52:22 2016 +0000
tree 036f518b7d048e95e7a70f6771a7e0ddfe3268ae
parent f15320faeeef8cc37be85eefca8a676e77276bca

compositor-drm: Comment struct members

Clarify the difference between crtc_id (DRM object) and pipe (index into
drmModeRes->crtcs array, possible_crtcs bitmask).

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Armin Krezović <krezovic.armin@gmail.com>
Differential Revision: https://phabricator.freedesktop.org/D1405

libweston/compositor-drm.c

diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index a899213..268117d 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -155,8 +155,8 @@
 	struct weston_output base;
 	drmModeConnector *connector;
 
-	uint32_t crtc_id;
-	int pipe;
+	uint32_t crtc_id; /* object ID to pass to DRM functions */
+	int pipe; /* index of CRTC in resource array / bitmasks */
 	uint32_t connector_id;
 	drmModeCrtcPtr original_crtc;
 	struct drm_edid edid;