From ad8a962be857d859cb02d88e5862ecf700502425 Mon Sep 17 00:00:00 2001
From: Petr Kracik <petrkr@petrkr.net>
Date: Fri, 5 Jun 2020 18:12:44 +0200
Subject: [PATCH] Gadget: keyboard descriptor to variable

---
 gadget_enable.sh | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/gadget_enable.sh b/gadget_enable.sh
index 907d4a7..2fb6105 100755
--- a/gadget_enable.sh
+++ b/gadget_enable.sh
@@ -5,6 +5,18 @@ gserial=$(awk '/Serial/ { print $3 }' /proc/cpuinfo)
 gmanufacturer="Petrkr.NET"
 gproduct="rPi KVM"
 
+KEYBOARD=""
+KEYBOARD="$KEYBOARD\\x05\\x01\\x09\\x06" # Usage generic desktop, Usage keyboard
+KEYBOARD="$KEYBOARD\\xa1\\x01\\x05\\x07" # Collection App, Use page Keyboard
+KEYBOARD="$KEYBOARD\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08" # Usage min (LeftControl) max (Right GUI), log min 0 log min 1, report size 1 count 8
+KEYBOARD="$KEYBOARD\\x81\\x02" # Input data, variable, absolute
+KEYBOARD="$KEYBOARD\\x75\\x08\\x95\\x01" # Report size 8, count 1
+KEYBOARD="$KEYBOARD\\x81\\x03" # Input Const, variable, absolute
+KEYBOARD="$KEYBOARD\\x75\\x01\\x95\\x05" # Report size 1 count 5
+KEYBOARD="$KEYBOARD\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\xff\\x05\\x07\\x19\\x00\\x29\\x65"
+KEYBOARD="$KEYBOARD\\x81\\x00" # Input data array absolute
+KEYBOARD="$KEYBOARD\\xc0" # End Collection Application
+
 #Mouse absolute descriptor
 MOUSE0=""
 MOUSE0="$MOUSE0\\x05\\x01\\x09\\x02" # Usage generic desktop, Usage mouse
@@ -52,7 +64,7 @@ mkdir -p functions/hid.kbd0
 echo 1 > functions/hid.kbd0/protocol
 echo 1 > functions/hid.kbd0/subclass
 echo 8 > functions/hid.kbd0/report_length
-echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\xff\\x05\\x07\\x19\\x00\\x29\\x65\\x81\\x00\\xc0 > functions/hid.kbd0/report_desc
+echo -ne $KEYBOARD > functions/hid.kbd0/report_desc
 
 echo "  HID Mouse"
 mkdir -p functions/hid.mouse0