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evdev: Make sure we only add evdev devices

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Let's use the sysfs path of the device to make sure we only load evdev
device, not legacy mousedev ones for instance. We rely on the sysfs
API/ABI guarantees and look for devices finishing by /input%d/event%d.
This commit is contained in:
Damien Lespiau 2010-11-08 11:38:16 -05:00
parent c6493885c3
commit b83a4813a4
1 changed files with 28 additions and 7 deletions
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33
clutter/evdev/clutter-device-manager-evdev.c
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@ -59,6 +59,19 @@ struct _ClutterDeviceManagerEvdevPrivate
static const gchar *subsystems[] = { "input", NULL };
static gboolean
is_evdev (const gchar *sysfs_path)
{
GRegex *regex;
gboolean match;
regex = g_regex_new ("/input[0-9]+/event[0-9]+$", 0, 0, NULL);
match = g_regex_match (regex, sysfs_path, 0, NULL);
g_regex_unref (regex);
return match;
}
static void
evdev_add_device (ClutterDeviceManagerEvdev *manager_evdev,
GUdevDevice *udev_device)
@ -66,17 +79,24 @@ evdev_add_device (ClutterDeviceManagerEvdev *manager_evdev,
ClutterDeviceManager *manager = (ClutterDeviceManager *) manager_evdev;
ClutterInputDeviceType type = CLUTTER_EXTENSION_DEVICE;
ClutterInputDevice *device;
const gchar *dev_file;
const gchar *device_file, *sysfs_path;
const gchar * const *keys;
guint i;
dev_file = g_udev_device_get_device_file (udev_device);
device_file = g_udev_device_get_device_file (udev_device);
sysfs_path = g_udev_device_get_sysfs_path (udev_device);
if (device_file == NULL || sysfs_path == NULL)
return;
if (g_udev_device_get_property (udev_device, "ID_INPUT") == NULL)
{
CLUTTER_NOTE (EVENT, "Ignoring device %s without ID_INPUT set", dev_file);
return;
}
/* Make sure to only add evdev devices, ie the device with a sysfs path that
* finishes by input%d/event%d (We don't rely on the node name as this
* policy is enforced by udev rules Vs API/ABI guarantees of sysfs) */
if (!is_evdev (sysfs_path))
return;
keys = g_udev_device_get_property_keys (udev_device);
for (i = 0; keys[i]; i++)
@ -106,7 +126,8 @@ evdev_add_device (ClutterDeviceManagerEvdev *manager_evdev,
NULL);
_clutter_device_manager_add_device (manager, device);
CLUTTER_NOTE (EVENT, "Added device %s, type %d", dev_file, type);
CLUTTER_NOTE (EVENT, "Added device %s, type %d, sysfs %s",
device_file, type, sysfs_path);
}
/*