Update keyboard descriptor HID (#375)

Change keyboard HID descriptor to match Microsoft IntelliType keyboard.

Fixes #352

scripts/usb-gadget/init-usb-gadget

@@ -37,40 +37,37 @@ echo 1 > "${KEYBOARD_FUNCTIONS_DIR}/protocol" # Keyboard
 echo 1 > "${KEYBOARD_FUNCTIONS_DIR}/subclass" # Boot interface subclass
 echo 8 > "${KEYBOARD_FUNCTIONS_DIR}/report_length"
 # Write the report descriptor
-# Source: https://www.kernel.org/doc/html/latest/usb/gadget_hid.html
 D=$(mktemp)
-echo -ne \\x05\\x01 >> "$D" # USAGE_PAGE (Generic Desktop)
-echo -ne \\x09\\x06 >> "$D" # USAGE (Keyboard)
-echo -ne \\xa1\\x01 >> "$D" # COLLECTION (Application)
-echo -ne \\x05\\x07 >> "$D" #   USAGE_PAGE (Keyboard)
-echo -ne \\x19\\xe0 >> "$D" #   USAGE_MINIMUM (Keyboard LeftControl)
-echo -ne \\x29\\xe7 >> "$D" #   USAGE_MAXIMUM (Keyboard Right GUI)
-echo -ne \\x15\\x00 >> "$D" #   LOGICAL_MINIMUM (0)
-echo -ne \\x25\\x01 >> "$D" #   LOGICAL_MAXIMUM (1)
-echo -ne \\x75\\x01 >> "$D" #   REPORT_SIZE (1)
-echo -ne \\x95\\x08 >> "$D" #   REPORT_COUNT (8)
-echo -ne \\x81\\x02 >> "$D" #   INPUT (Data,Var,Abs)
-echo -ne \\x95\\x01 >> "$D" #   REPORT_COUNT (1)
-echo -ne \\x75\\x08 >> "$D" #   REPORT_SIZE (8)
-echo -ne \\x81\\x03 >> "$D" #   INPUT (Cnst,Var,Abs)
-echo -ne \\x95\\x05 >> "$D" #   REPORT_COUNT (5)
-echo -ne \\x75\\x01 >> "$D" #   REPORT_SIZE (1)
-echo -ne \\x05\\x08 >> "$D" #   USAGE_PAGE (LEDs)
-echo -ne \\x19\\x01 >> "$D" #   USAGE_MINIMUM (Num Lock)
-echo -ne \\x29\\x05 >> "$D" #   USAGE_MAXIMUM (Kana)
-echo -ne \\x91\\x02 >> "$D" #   OUTPUT (Data,Var,Abs)
-echo -ne \\x95\\x01 >> "$D" #   REPORT_COUNT (1)
-echo -ne \\x75\\x03 >> "$D" #   REPORT_SIZE (3)
-echo -ne \\x91\\x03 >> "$D" #   OUTPUT (Cnst,Var,Abs)
-echo -ne \\x95\\x06 >> "$D" #   REPORT_COUNT (6)
-echo -ne \\x75\\x08 >> "$D" #   REPORT_SIZE (8)
-echo -ne \\x15\\x00 >> "$D" #   LOGICAL_MINIMUM (0)
-echo -ne \\x25\\x65 >> "$D" #   LOGICAL_MAXIMUM (101)
-echo -ne \\x05\\x07 >> "$D" #   USAGE_PAGE (Keyboard)
-echo -ne \\x19\\x00 >> "$D" #   USAGE_MINIMUM (Reserved)
-echo -ne \\x29\\x65 >> "$D" #   USAGE_MAXIMUM (Keyboard Application)
-echo -ne \\x81\\x00 >> "$D" #   INPUT (Data,Ary,Abs)
-echo -ne \\xc0 >> "$D"      # END_COLLECTION
+echo -ne \\x05\\x01 >> "$D"       # Usage Page (Generic Desktop Ctrls)
+echo -ne \\x09\\x06 >> "$D"       # Usage (Keyboard)
+echo -ne \\xA1\\x01 >> "$D"       # Collection (Application)
+echo -ne \\x05\\x08 >> "$D"       #   Usage Page (LEDs)
+echo -ne \\x19\\x01 >> "$D"       #   Usage Minimum (Num Lock)
+echo -ne \\x29\\x03 >> "$D"       #   Usage Maximum (Scroll Lock)
+echo -ne \\x15\\x00 >> "$D"       #   Logical Minimum (0)
+echo -ne \\x25\\x01 >> "$D"       #   Logical Maximum (1)
+echo -ne \\x75\\x01 >> "$D"       #   Report Size (1)
+echo -ne \\x95\\x03 >> "$D"       #   Report Count (3)
+echo -ne \\x91\\x02 >> "$D"       #   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
+echo -ne \\x09\\x4B >> "$D"       #   Usage (Generic Indicator)
+echo -ne \\x95\\x01 >> "$D"       #   Report Count (1)
+echo -ne \\x91\\x02 >> "$D"       #   Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
+echo -ne \\x95\\x04 >> "$D"       #   Report Count (4)
+echo -ne \\x91\\x01 >> "$D"       #   Output (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
+echo -ne \\x05\\x07 >> "$D"       #   Usage Page (Kbrd/Keypad)
+echo -ne \\x19\\xE0 >> "$D"       #   Usage Minimum (0xE0)
+echo -ne \\x29\\xE7 >> "$D"       #   Usage Maximum (0xE7)
+echo -ne \\x95\\x08 >> "$D"       #   Report Count (8)
+echo -ne \\x81\\x02 >> "$D"       #   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+echo -ne \\x75\\x08 >> "$D"       #   Report Size (8)
+echo -ne \\x95\\x01 >> "$D"       #   Report Count (1)
+echo -ne \\x81\\x01 >> "$D"       #   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
+echo -ne \\x19\\x00 >> "$D"       #   Usage Minimum (0x00)
+echo -ne \\x29\\x91 >> "$D"       #   Usage Maximum (0x91)
+echo -ne \\x26\\xFF\\x00 >> "$D"  #   Logical Maximum (255)
+echo -ne \\x95\\x06 >> "$D"       #   Report Count (6)
+echo -ne \\x81\\x00 >> "$D"       #   Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
+echo -ne \\xC0 >> "$D"            # End Collection
 cp "$D" "${KEYBOARD_FUNCTIONS_DIR}/report_desc"
 
 # Mouse