Hi Hans,
On 4/16/23 22:31, Hans de Goede wrote:
Hi Jacek,
On 4/16/23 17:17, Jacek Anaszewski wrote:
Hi Hans,
[...]
+===========================================================
+Kernel driver for Intel Cherry Trail Whiskey Cove PMIC LEDs
+===========================================================
+
+/sys/class/leds/<led>/hw_pattern
+--------------------------------
+
+Specify a hardware pattern for the Whiskey Cove PMIC LEDs.
+
+The only supported pattern is hardware breathing mode::
+
+ "0 2000 1 2000"
Why 1? What is the peek brightness in this mode?
255, but the pattern only controls the timing. For max brightness
the last set brightness is used and the max brightness can be changed
while breathing by writing the brightness attribute.
This is just like how blinking works in the LED subsystem,
for both sw and hw blinking the brightness can also be changed
while blinking. Breathing on this hw really is just a variant
mode of blinking.
Thanks for the explanation. So it would be nice to have it
also mentioned explicitly here.
--
Best regards,
Jacek Anaszewski
