Another evdev protocol infringement

Even though Peter Hutterer commented that it's not technically needed to
send SYN/delay when the sequence of events is of different keys, it
seems to be shown necessary to do so, otherwise events are dropped in
random situations.

README.md

@@ -4,9 +4,7 @@ _Transforming the most useless key **ever** in the most useful one._
 <sub>_For vi/Vim/NeoVim addicts at least_.</sub>
 
 <a href="http://www.catonmat.net/blog/why-vim-uses-hjkl-as-arrow-keys/">
-
-![ADM-3A terminal](http://www.catonmat.net/images/why-vim-uses-hjkl/lsi-adm3a-full-keyboard.jpg)
-
+    <img src="http://www.catonmat.net/images/why-vim-uses-hjkl/lsi-adm3a-full-keyboard.jpg" alt="ADM-3A terminal">
 </a>
 
 ## What is it?
@@ -28,8 +26,8 @@ ESC when pressed alone is quite handy, specially in vi.
 ## Building
 
 ```
-$ git clone git@gitlab.com:interception/linux/tools.git
-$ cd tools
+$ git clone git@gitlab.com:interception/linux/plugins/caps2esc.git
+$ cd caps2esc
 $ mkdir build
 $ cd build
 $ cmake ..

caps2esc.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <unistd.h>
 #include <linux/input.h>
 
 // clang-format off
@@ -13,7 +14,8 @@ ctrl_down       = {.type = EV_KEY, .code = KEY_LEFTCTRL, .value = 1},
 capslock_down   = {.type = EV_KEY, .code = KEY_CAPSLOCK, .value = 1},
 esc_repeat      = {.type = EV_KEY, .code = KEY_ESC,      .value = 2},
 ctrl_repeat     = {.type = EV_KEY, .code = KEY_LEFTCTRL, .value = 2},
-capslock_repeat = {.type = EV_KEY, .code = KEY_CAPSLOCK, .value = 2};
+capslock_repeat = {.type = EV_KEY, .code = KEY_CAPSLOCK, .value = 2},
+syn             = {.type = EV_SYN, .code = SYN_REPORT,   .value = 0};
 // clang-format on
 
 int equal(const struct input_event *first, const struct input_event *second) {
@@ -55,6 +57,8 @@ int main(void) {
                     continue;
                 }
                 write_event(&esc_down);
+                write_event(&syn);
+                usleep(20000);
                 write_event(&esc_up);
                 continue;
             }
@@ -62,6 +66,8 @@ int main(void) {
             if (!esc_give_up && input.value) {
                 esc_give_up = 1;
                 write_event(&ctrl_down);
+                write_event(&syn);
+                usleep(20000);
             }
         } else if (equal(&input, &capslock_down)) {
             capslock_is_down = 1;