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Slight corrections to input event handling to prevent double-keypress events.

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This commit is contained in:
Andrew Brooks 2018-01-27 14:27:57 -06:00
parent 80f090a83b
commit c303b1abb4
1 changed files with 3 additions and 2 deletions
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5
barcode_service/barcode_service.c
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@ -102,13 +102,14 @@ decode_next_event(int fd)
ssize_t n_read = read(fd, &event, sizeof(struct input_event));
if (n_read != sizeof(struct input_event)) {
fprintf(stderr, "Read interrupted!\n");
exit(1);
continue;
}
/*
* If we received a keypress event, decode the keycode responsible.
* (Event value 1 = key depressed)
*/
if (event.type == EV_KEY) {
if (event.type == EV_KEY && event.value == 1) {
switch (event.code) {
#define DECODE_KEY(key_name, decode_char) case (KEY_##key_name): return decode_char
DECODE_KEY(ENTER, '\n');