diff options
Diffstat (limited to 'src/eventcomm.c')
| -rw-r--r-- | src/eventcomm.c | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/src/eventcomm.c b/src/eventcomm.c index 37de38a..2ee072b 100644 --- a/src/eventcomm.c +++ b/src/eventcomm.c @@ -278,49 +278,33 @@ EventDeviceOffHook(InputInfoPtr pInfo) * - BTN_TOOL_PEN is _not_ set * * @param evdev Libevdev handle - * @param test_grab If true, test whether an EVIOCGRAB is possible on the - * device. A failure to grab the event device returns in a failure. * * @return TRUE if the device is a touchpad or FALSE otherwise. */ static Bool -event_query_is_touchpad(struct libevdev *evdev, BOOL test_grab) +event_query_is_touchpad(struct libevdev *evdev) { - int ret = FALSE, rc; - - if (test_grab) { - rc = libevdev_grab(evdev, LIBEVDEV_GRAB); - if (rc < 0) - return FALSE; - } - /* Check for ABS_X, ABS_Y, ABS_PRESSURE and BTN_TOOL_FINGER */ if (!libevdev_has_event_type(evdev, EV_SYN) || !libevdev_has_event_type(evdev, EV_ABS) || !libevdev_has_event_type(evdev, EV_KEY)) - goto unwind; + return FALSE; if (!libevdev_has_event_code(evdev, EV_ABS, ABS_X) || !libevdev_has_event_code(evdev, EV_ABS, ABS_Y)) - goto unwind; + return FALSE; /* we expect touchpad either report raw pressure or touches */ if (!libevdev_has_event_code(evdev, EV_KEY, BTN_TOUCH) && !libevdev_has_event_code(evdev, EV_ABS, ABS_PRESSURE)) - goto unwind; + return FALSE; /* all Synaptics-like touchpad report BTN_TOOL_FINGER */ if (!libevdev_has_event_code(evdev, EV_KEY, BTN_TOOL_FINGER) || libevdev_has_event_code(evdev, EV_ABS, BTN_TOOL_PEN)) /* Don't match wacom tablets */ - goto unwind; - - ret = TRUE; - - unwind: - if (test_grab) - libevdev_grab(evdev, LIBEVDEV_UNGRAB); + return FALSE; - return (ret == TRUE); + return TRUE; } #define PRODUCT_ANY 0x0000 @@ -512,8 +496,7 @@ EventQueryHardware(InputInfoPtr pInfo) SynapticsPrivate *priv = (SynapticsPrivate *) pInfo->private; struct eventcomm_proto_data *proto_data = priv->proto_data; - if (!event_query_is_touchpad(proto_data->evdev, - (proto_data) ? proto_data->need_grab : TRUE)) + if (!event_query_is_touchpad(proto_data->evdev)) return FALSE; xf86IDrvMsg(pInfo, X_PROBED, "touchpad found\n"); @@ -912,7 +895,7 @@ EventReadDevDimensions(InputInfoPtr pInfo) proto_data->axis_map[i] = -1; proto_data->cur_slot = -1; - if (event_query_is_touchpad(proto_data->evdev, proto_data->need_grab)) { + if (event_query_is_touchpad(proto_data->evdev)) { event_query_touch(pInfo); event_query_axis_ranges(pInfo); } @@ -946,7 +929,7 @@ EventAutoDevProbe(InputInfoPtr pInfo, const char *device) rc = libevdev_new_from_fd(fd, &evdev); if (rc >= 0) { - touchpad_found = event_query_is_touchpad(evdev, TRUE); + touchpad_found = event_query_is_touchpad(evdev); libevdev_free(evdev); } @@ -988,7 +971,7 @@ EventAutoDevProbe(InputInfoPtr pInfo, const char *device) rc = libevdev_new_from_fd(fd, &evdev); if (rc >= 0) { - touchpad_found = event_query_is_touchpad(evdev, TRUE); + touchpad_found = event_query_is_touchpad(evdev); libevdev_free(evdev); if (touchpad_found) { xf86IDrvMsg(pInfo, X_PROBED, "auto-dev sets device to %s\n", |