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-rw-r--r--drivers/misc/thinkpad_acpi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 2fe4d61cc27f..8348fc653009 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -296,6 +296,8 @@ static int bluetooth_write(char *buf);
* Brightness (backlight) subdriver
*/
+#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
+
static struct backlight_device *ibm_backlight_device;
static int brightness_offset = 0x31;
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