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quequotion

Member

From: Oita, Japan

Registered: 2013-07-29

Posts: 813

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DS3(SIXAXIS) LED fun, and binary

I noticed that LED power saving (brightness == 0, off) in throttle seems to work for the controller LEDs.

Oh neat! I thought. Let's have fun with DS3 leds!

First test:

# echo 1 > /sys/module/hid_sony/drivers/hid\:sony/0005\:054C\:0268.0006/leds/0005\:054C\:0268.0006\:\:sony1/brightness

LEDs (4321):

XXXO

Second test:

# echo 2 > /sys/module/hid_sony/drivers/hid\:sony/0005\:054C\:0268.0006/leds/0005\:054C\:0268.0006\:\:sony1/brightness

LEDs (4321):

XXOX

Third test:

# echo 3 > /sys/module/hid_sony/drivers/hid\:sony/0005\:054C\:0268.0006/leds/0005\:054C\:0268.0006\:\:sony1/brightness

LEDs (4321):

XXOO

Wat?

Fourth test:

# echo 4 > /sys/module/hid_sony/drivers/hid\:sony/0005\:054C\:0268.0006/leds/0005\:054C\:0268.0006\:\:sony1/brightness

LEDs (4321):

XOXX

Oh.

It's a binary vector!

1 = 0001, 2 = 0010, 3 = 0011, 4 = 0100, etc,  255 = 1111

Changing the led has no affect on input or connection state, but for reference:
Controller 1 is "1" and 2 is "2", but  3 is "4" and 4 is "8". All leds off (good for battery) is "0"; all on is "255". Invalid values are also off.

Coming soon to DS3: On-board battery and signal indicators?

EDIT: Since this post the kernel devs have seen if fit to radically alter how the leds work--there are now individual entries in sysfs for each led on the controller with the range 0~1.

Last edited by quequotion (2017-03-02 20:56:27)

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