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Description
Calling the FP_LED_LEVEL_CONTROL
host command with set
requires one of the symbolic LED brightnesses:
FP_LED_BRIGHTNESS_HIGH
=0
FP_LED_BRIGHTNESS_MEDIUM
=1
FP_LED_BRIGHTNESS_LOW
=2
However, calling it with get
populated returns the actual stored brightness value:
- high =
55
(FP_LED_HIGH
) - medium =
40
(FP_LED_MEDIUM
) - low =
15
(FP_LED_LOW
)
### Write brightness 2 (low)
# ectool raw 0x3e0e b2,b0
3e0e(...2 bytes...)
02 00 |.. |
### Read back (low = 15)
# ectool raw 0x3e0e b0,b1
3e0e(...2 bytes...)
00 01 |.. |
Read 1 bytes
0f |. |
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hauntingEcho commentedon Mar 7, 2022
It looks like the relevant code is here: https://github.com/FrameworkComputer/EmbeddedController/blob/hx20/board/hx20/led.c#L400
[-]FP_LED_LEVEL_CONTROL takes symbolic inputs but returns raw outputs[/-][+]hx20: FP_LED_LEVEL_CONTROL takes symbolic inputs but returns raw outputs[/+]