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config: limit the kernel subsystems we look for devices in 

Don't enumerate/monitor all devices of the system (since that can be
quite a few), but limit our search to devices from the "input"
subsystem, as well as the "tty" subsystem (to cover Wacom tablets).

This should make X start up a bit faster and reduce the number of
unnecessary wake-ups of the X server.

Signed-off-by: Lennart Poettering <lennart@poettering.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Lennart Poettering 2011-07-18 21:17:49 +02:00 committed by Peter Hutterer
parent 882e3c2680
commit f13de9ca1b
1 changed files with 7 additions and 0 deletions
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7
config/udev.c
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@ -281,6 +281,9 @@ config_udev_init(void)
if (!udev_monitor)
return 0;
udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "input", NULL);
udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL); /* For Wacom serial devices */
if (udev_monitor_enable_receiving(udev_monitor)) {
ErrorF("config/udev: failed to bind the udev monitor\n");
return 0;
@ -289,6 +292,10 @@ config_udev_init(void)
enumerate = udev_enumerate_new(udev);
if (!enumerate)
return 0;
udev_enumerate_add_match_subsystem(enumerate, "input");
udev_enumerate_add_match_subsystem(enumerate, "tty");
udev_enumerate_scan_devices(enumerate);
devices = udev_enumerate_get_list_entry(enumerate);
udev_list_entry_foreach(device, devices) {