X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=doc%2Fkeymap.md;h=d4a129b208150062ff8a7bf7705396ce1d1f32a5;hb=a55160887322c5498f6a9b01bcc2e137e5e6cd51;hp=11feeac218c37470095fbc48e00c9df9ee2f312d;hpb=589d99b448e6085513799fbb183f6389d4df408d;p=max%2Ftmk_keyboard.git

diff --git a/doc/keymap.md b/doc/keymap.md
index 11feeac2..d4a129b2 100644
--- a/doc/keymap.md
+++ b/doc/keymap.md
@@ -198,7 +198,7 @@ There are 8 modifiers which has discrimination between left and right.
  See keycode table in [`doc/keycode.txt`](./keycode.txt) for description of keycodes.
 
  In regard to implementation side most of keycodes are identical with [HID usage][HID_usage](pdf) sent to host for real and some virtual keycodes are defined to support special actions.
-[HID_usage]: http://www.usb.org/developers/devclass_docs/Hut1_11.pdf
+[HID_usage]: http://www.usb.org/developers/hidpage/Hut1_12v2.pdf
 
 
 
@@ -497,6 +497,13 @@ Number of taps can be configured with `TAPPING_TOGGLE` in `config.h`, `5` by def
 
 
 
+### 3.5 Momentary switching with Modifiers
+This registers modifier key(s) simultaneously with layer switching.
+
+    ACTION_LAYER_MODS(2, MOD_LSFT | MOD_LALT)
+
+
+
 ## 4. Tapping
 Tapping is to press and release a key quickly. Tapping speed is determined with setting of `TAPPING_TERM`, which can be defined in `config.h`, 200ms by default.