Thinklight has only two values, on/off so it's reasonable for
max_brightness to be 0 and 1 as if you write anything between 0 and 255
it will be 255 anyway so there's no point for it to be 255.
Also sorry for repeated messages, I got no reply so I'm trying to figure
out what I did wrong.
---
drivers/platform/x86/thinkpad_acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/thinkpad_acpi.c
b/drivers/platform/x86/thinkpad_acpi.c
index 22d4e8633e30e9..775c2f327dc3a8 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -5562,6 +5562,7 @@ static enum led_brightness light_sysfs_get(struct
led_classdev *led_cdev)
static struct tpacpi_led_classdev tpacpi_led_thinklight = {
.led_classdev = {
.name = "tpacpi::thinklight",
+ .max_brightness = 1,
.brightness_set_blocking = &light_sysfs_set,
.brightness_get = &light_sysfs_get,
}