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[Core] Don't send keyboard reports that propagate no changes to the host (#14065)

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Stefan Kerkmann 2021-12-14 19:40:18 +01:00 • committed by GitHub
parent ce5a2a7367
commit 8b865a9d64
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10 changed files with 51 additions and 71 deletions
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quantum/action_util.c
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@ -21,6 +21,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "action_layer.h"
#include "timer.h"
#include "keycode_config.h"
#include <string.h>
extern keymap_config_t keymap_config;
@ -247,7 +248,13 @@ void send_keyboard_report(void) {
keyboard_report->mods |= weak_override_mods;
#endif
host_keyboard_send(keyboard_report);
static report_keyboard_t last_report;
/* Only send the report if there are changes to propagate to the host. */
if (memcmp(keyboard_report, &last_report, sizeof(report_keyboard_t)) != 0) {
memcpy(&last_report, keyboard_report, sizeof(report_keyboard_t));
host_keyboard_send(keyboard_report);
}
}
/** \brief Get mods