# Basic Keycodes
-The basic set of keycodes are based on the [HID Keyboard/Keypad Usage Page (0x07)](http://www.usb.org/developers/hidpage/Hut1_12v2.pdf) with the exception of `KC_NO`, `KC_TRNS` and keycodes in the `0xA5-DF` range. See below for more details.
+The basic set of keycodes are based on the [HID Keyboard/Keypad Usage Page (0x07)](https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf) with the exception of `KC_NO`, `KC_TRNS` and keycodes in the `0xA5-DF` range. See below for more details.
## Letters and Numbers
|`KC_LGUI` |`KC_LCMD`, `KC_LWIN`|Left GUI (Windows/Command/Meta key) |
|`KC_RCTRL` |`KC_RCTL` |Right Control |
|`KC_RSHIFT`|`KC_RSFT` |Right Shift |
-|`KC_RALT` | |Right Alt |
+|`KC_RALT` |`KC_ALGR` |Right Alt (AltGr) |
|`KC_RGUI` |`KC_RCMD`, `KC_RWIN`|Right GUI (Windows/Command/Meta key)|
## International
|Key |Aliases |Description |
|----------|---------|-------------------------------|
-|`KC_INT1` |`KC_RO` |JIS `\` and <code>|</code>|
+|`KC_INT1` |`KC_RO` |JIS `\` and `_` |
|`KC_INT2` |`KC_KANA`|JIS Katakana/Hiragana |
-|`KC_INT3` |`KC_JYEN`|JIS `¥` |
+|`KC_INT3` |`KC_JYEN`|JIS `¥` and <code>|</code>|
|`KC_INT4` |`KC_HENK`|JIS Henkan |
|`KC_INT5` |`KC_MHEN`|JIS Muhenkan |
|`KC_INT6` | |JIS Numpad `,` |
|`KC_WWW_FAVORITES` |`KC_WFAV`|Browser Favorites (Windows) |
|`KC_MEDIA_FAST_FORWARD`|`KC_MFFD`|Next Track (macOS) |
|`KC_MEDIA_REWIND` |`KC_MRWD`|Previous Track (macOS) |
+|`KC_BRIGHTNESS_UP` |`KC_BRIU`|Brightness Up |
+|`KC_BRIGHTNESS_DOWN` |`KC_BRID`|Brightness Down |
## Number Pad