Input: uinput - add devname alias to allow module on-demand load

Recent modprobe and udev versions allow to create device nodes
for modules which are not loaded. Only the first access will cause
the in-kernel module loader to pull-in the module. Systems which
never access the device node will not needlessly load the module,
and no longer need init scripts or other facilities to unconditionally
load it.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index bb53fd3..0d4266a 100644 (file)
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -811,6 +811,8 @@ static struct miscdevice uinput_misc = {
        .minor          = UINPUT_MINOR,
        .name           = UINPUT_NAME,
 };
+MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
+MODULE_ALIAS("devname:" UINPUT_NAME);
 
 static int __init uinput_init(void)
 {

diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index bafffc7..18fd130 100644 (file)
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -33,6 +33,7 @@
 #define MWAVE_MINOR            219     /* ACP/Mwave Modem */
 #define MPT_MINOR              220
 #define MPT2SAS_MINOR          221
+#define UINPUT_MINOR           223
 #define HPET_MINOR             228
 #define FUSE_MINOR             229
 #define KVM_MINOR              232

diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 60c81da..05f7fed 100644 (file)
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -37,7 +37,6 @@
 #define UINPUT_VERSION         3
 
 #ifdef __KERNEL__
-#define UINPUT_MINOR           223
 #define UINPUT_NAME            "uinput"
 #define UINPUT_BUFFER_SIZE     16
 #define UINPUT_NUM_REQUESTS    16