1 files changed, 46 insertions, 8 deletions

diff --git a/drivers/input/input.c b/drivers/input/input.c
index bdd2a7fc268d..ef5824c8846b 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -18,7 +18,6 @@
 #include <linux/random.h>
 #include <linux/major.h>
 #include <linux/proc_fs.h>
-#include <linux/kobject_uevent.h>
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/device.h>
@@ -529,10 +528,49 @@ INPUT_DEV_STRING_ATTR_SHOW(name);
 INPUT_DEV_STRING_ATTR_SHOW(phys);
 INPUT_DEV_STRING_ATTR_SHOW(uniq);
 
+static int print_modalias_bits(char *buf, char prefix, unsigned long *arr,
+                               unsigned int min, unsigned int max)
+{
+        int len, i;
+
+        len = sprintf(buf, "%c", prefix);
+        for (i = min; i < max; i++)
+                if (arr[LONG(i)] & BIT(i))
+                        len += sprintf(buf+len, "%X,", i);
+        return len;
+}
+
+static ssize_t input_dev_show_modalias(struct class_device *dev, char *buf)
+{
+        struct input_dev *id = to_input_dev(dev);
+        ssize_t len = 0;
+
+        len += sprintf(buf+len, "input:b%04Xv%04Xp%04Xe%04X-",
+                       id->id.bustype,
+                       id->id.vendor,
+                       id->id.product,
+                       id->id.version);
+
+        len += print_modalias_bits(buf+len, 'e', id->evbit, 0, EV_MAX);
+        len += print_modalias_bits(buf+len, 'k', id->keybit,
+                                   KEY_MIN_INTERESTING, KEY_MAX);
+        len += print_modalias_bits(buf+len, 'r', id->relbit, 0, REL_MAX);
+        len += print_modalias_bits(buf+len, 'a', id->absbit, 0, ABS_MAX);
+        len += print_modalias_bits(buf+len, 'm', id->mscbit, 0, MSC_MAX);
+        len += print_modalias_bits(buf+len, 'l', id->ledbit, 0, LED_MAX);
+        len += print_modalias_bits(buf+len, 's', id->sndbit, 0, SND_MAX);
+        len += print_modalias_bits(buf+len, 'f', id->ffbit, 0, FF_MAX);
+        len += print_modalias_bits(buf+len, 'w', id->swbit, 0, SW_MAX);
+        len += sprintf(buf+len, "\n");
+        return len;
+}
+static CLASS_DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);
+
 static struct attribute *input_dev_attrs[] = {
         &class_device_attr_name.attr,
         &class_device_attr_phys.attr,
         &class_device_attr_uniq.attr,
+        &class_device_attr_modalias.attr,
         NULL
 };
 
@@ -611,10 +649,10 @@ static void input_dev_release(struct class_device *class_dev)
 }
 
 /*
- * Input hotplugging interface - loading event handlers based on
+ * Input uevent interface - loading event handlers based on
  * device bitfields.
  */
-static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
+static int input_add_uevent_bm_var(char **envp, int num_envp, int *cur_index,
                                     char *buffer, int buffer_size, int *cur_len,
                                     const char *name, unsigned long *bitmap, int max)
 {
@@ -639,7 +677,7 @@ static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
 
 #define INPUT_ADD_HOTPLUG_VAR(fmt, val...)                              \
         do {                                                            \
-                int err = add_hotplug_env_var(envp, num_envp, &i,       \
+                int err = add_uevent_var(envp, num_envp, &i,    \
                                         buffer, buffer_size, &len,      \
                                         fmt, val);                      \
                 if (err)                                                \
@@ -648,15 +686,15 @@ static int input_add_hotplug_bm_var(char **envp, int num_envp, int *cur_index,
 
 #define INPUT_ADD_HOTPLUG_BM_VAR(name, bm, max)                         \
         do {                                                            \
-                int err = input_add_hotplug_bm_var(envp, num_envp, &i,  \
+                int err = input_add_uevent_bm_var(envp, num_envp, &i,   \
                                         buffer, buffer_size, &len,      \
                                         name, bm, max);                 \
                 if (err)                                                \
                         return err;                                     \
         } while (0)
 
-static int input_dev_hotplug(struct class_device *cdev, char **envp,
-                             int num_envp, char *buffer, int buffer_size)
+static int input_dev_uevent(struct class_device *cdev, char **envp,
+                            int num_envp, char *buffer, int buffer_size)
 {
         struct input_dev *dev = to_input_dev(cdev);
         int i = 0;
@@ -698,7 +736,7 @@ static int input_dev_hotplug(struct class_device *cdev, char **envp,
 struct class input_class = {
         .name                   = "input",
         .release                = input_dev_release,
-        .hotplug                = input_dev_hotplug,
+        .uevent                 = input_dev_uevent,
 };
 
 struct input_dev *input_allocate_device(void)