input/tablet: add tool_mode option to set tablet tools as relative input

Closes #4139.

1 files changed, 11 insertions, 0 deletions

diff --git a/sway/sway-input.5.scd b/sway/sway-input.5.scd
index 9ec5eeae..d8180c1c 100644
--- a/sway/sway-input.5.scd
+++ b/sway/sway-input.5.scd
@@ -94,6 +94,17 @@ The following commands may only be used in the configuration file.
 *input* <identifier> xkb_numlock enabled|disabled
         Initially enables or disables NumLock on startup, the default is disabled.
 
+## TABLET CONFIGURATION
+
+*input* <identifier> tool_mode <tool> <absolute|relative>
+        Sets whether movement of a tablet tool should be treated as absolute or
+        relative; the default is absolute.
+
+        Valid values for _\<tool\>_ are currently "pen", "eraser", "brush",
+        "pencil", "airbrush", and the wildcard _\*_, which matches all tools.
+
+        Mouse and lens tools ignore this setting and are always treated as relative.
+
 ## MAPPING CONFIGURATION
 
 *input* <identifier> map_to_output <identifier>