V4L/DVB: ir-core: export driver name used by IR via uevent

Now, both driver and keytable names are exported to userspace. This
will help userspace to decide when a table need to be replaced
by another one.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 8 insertions, 1 deletions

diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index 6db3ff74659b..73fe4bec83bc 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -404,7 +404,8 @@ EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
  */
 int ir_input_register(struct input_dev *input_dev,
                       const struct ir_scancode_table *rc_tab,
-                      const struct ir_dev_props *props)
+                      const struct ir_dev_props *props,
+                      const char *driver_name)
 {
         struct ir_input_dev *ir_dev;
         struct ir_scancode  *keymap    = rc_tab->scan;
@@ -419,6 +420,10 @@ int ir_input_register(struct input_dev *input_dev,
 
         spin_lock_init(&ir_dev->rc_tab.lock);
 
+        ir_dev->driver_name = kmalloc(strlen(driver_name) + 1, GFP_KERNEL);
+        if (!ir_dev->driver_name)
+                return -ENOMEM;
+        strcpy(ir_dev->driver_name, driver_name);
         ir_dev->rc_tab.name = rc_tab->name;
         ir_dev->rc_tab.size = ir_roundup_tablesize(rc_tab->size);
         ir_dev->rc_tab.scan = kzalloc(ir_dev->rc_tab.size *
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
index 6d63657b5685..0592515a19f8 100644
--- a/drivers/media/IR/ir-sysfs.c
+++ b/drivers/media/IR/ir-sysfs.c
@@ -140,6 +140,8 @@ static int ir_dev_uevent(struct device *device, struct kobj_uevent_env *env)
 
         if (ir_dev->rc_tab.name)
                 ADD_HOTPLUG_VAR("NAME=\"%s\"", ir_dev->rc_tab.name);
+        if (ir_dev->driver_name)
+                ADD_HOTPLUG_VAR("DRV_NAME=\"%s\"", ir_dev->driver_name);
 
         return 0;
 }