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tools: complain about devices that don't have abs x/y axes in the edge detector

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2015-01-13 10:45:22 +10:00
parent e1d87fa6df
commit f54656ecc1
1 changed files with 8 additions and 0 deletions
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8
tools/touchpad-edge-detector.c
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@ -169,6 +169,13 @@ int main (int argc, char **argv) {
}
libevdev_grab(dev, LIBEVDEV_UNGRAB);
if (!libevdev_has_event_code(dev, EV_ABS, ABS_X) ||
!libevdev_has_event_code(dev, EV_ABS, ABS_Y)) {
fprintf(stderr, "Error: this device does not have abs axes\n");
rc = EXIT_FAILURE;
goto out;
}
dim.left = INT_MAX;
dim.right = INT_MIN;
dim.top = INT_MAX;
@ -188,6 +195,7 @@ int main (int argc, char **argv) {
printf("\n");
out:
libevdev_free(dev);
close(fd);