qmk

Unnamed repository; edit this file 'description' to name the repository.
git clone git://git.z3bra.org/qmk.git
Log | Files | Refs | Submodules | LICENSE

commit d08f9cb6e4d5f14409d49ea5df93cb91777357da
parent 397d404ce0b2a0730e493897f72a86f7a40f4207
Author: Christoffer Holmberg <skug@skug.fi>
Date:   Wed, 17 Oct 2018 21:54:37 +0300

Fix grammar, typos, and the link to HID specification

Diffstat:
docs/how_keyboards_work.md | 14+++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/docs/how_keyboards_work.md b/docs/how_keyboards_work.md @@ -27,17 +27,17 @@ This usually happens with a periodic scan of key presses. This speed often is li ## 2. What the Firmware Sends -The [HID specification](http://www.usb.org/developers/hidpage/Hut1_12v2.pdf) tells what a keyboard can actually send through USB to have a chance to be properly recognised. This includes a pre-defined list of scancodes which are simple numbers from `0x00` to `0xE7`. The firmware assigns a scancode to each key of the keyboard. +The [HID specification](https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf) tells what a keyboard can actually send through USB to have a chance to be properly recognised. This includes a pre-defined list of scancodes which are simple numbers from `0x00` to `0xE7`. The firmware assigns a scancode to each key of the keyboard. -The firmware does not send actually letters or characters, but only scancodes. -Thus, by modifying the firmware, you only can modify what scancode is sent over +The firmware does not send actual letters or characters, but only scancodes. +Thus, by modifying the firmware, you can only modify what scancode is sent over USB for a given key. ## 3. What the Operating System Does Once the keycode reaches the operating system, a piece of software has to have it match an actual character thanks to a keyboard layout. For example, if your -layout is set to QWERTY, a sample of the matching table is as follow: +layout is set to QWERTY, a sample of the matching table is as follows: | keycode | character | |---------|-----------| @@ -55,11 +55,11 @@ As the layout is generally fixed (unless you create your own), the firmware can ## List of Characters You Can Send -Putting aside shortcuts, having a limited set of keycodes mapped to a limited layout means that **the list of characters you can assign to a given key only is the ones present in the layout**. +Putting aside shortcuts, having a limited set of keycodes mapped to a limited layout means that **the list of characters you can assign to a given key are only the ones present in the layout**. -For example, this means that if you have a QWERTY US layout, and you want to assign 1 key to produce `€` (euro currency symbol), you are unable to do so, because the QWERTY US layout does not have such mapping. You could fix that by using a QWERTY UK layout, or a QWERTY US International. +For example, this means that if you have a QWERTY US layout, and you want to assign one key to produce `€` (euro currency symbol), you are unable to do so, because the QWERTY US layout does not have such mapping. You could fix that by using a QWERTY UK layout, or a QWERTY US International. -You may wonder why a keyboard layout containing all of Unicode is not devised then? The limited number of keycode available through USB simply disallow such a thing. +You may wonder why a keyboard layout containing all of Unicode is not devised then? The limited number of keycodes available through USB simply disallows such a thing. ## How to (Maybe) Enter Unicode Characters