1 files changed, 12 insertions, 0 deletions
diff --git a/cg-query.1 b/cg-query.1
index 93ae3ff..cd5e86e 100644
--- a/cg-query.1
+++ b/cg-query.1
@@ -11,6 +11,8 @@ cg-query - List output filters applied to a monitor
 .IR high ]
 .RB [ \-l
 .IR low ]
+.RB [ \-f
+.IR class ]
 .B \-c
 .I crtc
 .SH DESCRIPTION
@@ -28,6 +30,16 @@ Do not list filter with higher priority than
 Do not list filter with lower priority than
 .IR low .
 .TP
+.BR \-f " "\fIclass\fP
+Print the gamma ramps of the filter with the specified
+.I class
+on the selected CRTC. If
+.I class
+is an asterisk
+.RB ( * ),
+all filters within the specified priority range are
+coalesced and printed as one filter.
+.TP
 .BR \-c " "\fIcrtc\fP
 Apply the filter to the CRTC with the monitor whose EDID is
 .IR crtc .