Android :: Access The Camera's LEDs Directly

Jul 2, 2010

I'm still pretty new to using Android, but I decided that my first application would be a simple flashlight app for my new Incredible. Unfortunately, it seems to be more difficult than I had originally thought.

It seems that there's no way to access the LEDs through the SDK, at least not without a bunch of weird hacks to make the phone pretend that it's taking a picture. Even then, I can only get the LEDs to turn on. They only turn off if the phone is put on hold, and doing so breaks all camera-related apps until the phone is rebooted.

So, I was wondering if accessing the LEDs through the NDK was possible, or if there was any other camera-related APIs that would seem to do what I want.

I've looked at other code for other flashlights, so it looks like it's a hardware-based problem. I figured I'd give up because it doesn't appear to be possible, but I thought I should ask here first on the off-chance somebody knows something that I don't.

Android :: access the camera's LEDs directly


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Android :: Adb Controls G1 Keyboard LEDs

Sep 13, 2010

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Oct 20, 2009

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Sep 23, 2010

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Aug 31, 2010

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Nov 14, 2009

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Sep 26, 2010

Is there any program or other way do turn off the screen LEDs for example when docked at night? LEDs Hack from the market has an option for Hero with Froyo. I emailed the developer, but didnt know if anyone here had any solutions. I'm running KF v35-1 btw. I was looking at replacing my clock on my bedside table with a dock that would hold the phone upright so I could see the time. I can keep the display on, but wanted the bright lights on the front off. With the program below, I can turn off all LEDs except the white ones behind the home, menu, back and search keys. I tried all the different phones. One of the first times I tried it, the LEDs all went out and would not come back on. Did a reboot and dalvk wipe which restored the LEDs. I went back through all the devices again and could not repeat the result of getting all lights out. The Hero version can stop all LEDs except the leds i mentioned.

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