I'm trying to write a simple app to strobe the LED flash. I've started by playing about with the flashlight app's source.

I've got it strobing the LED, but the intensity seems *much* lower than when using the flash in the native camera app.

The maximum I can set V4L2_CID_FLASH_INTENSITY is 19 (which is the maximum when I query it). This just doesn't seem as bright as the built-in.

Any ideas anyone? (even where to find good documentation would be helpful)

UPDATE: so i sorted it out, and this is what I've been up to:

http://doitdifferent.wordpress.com/2...-remote-flash/

If folk are interested in the details, I can get them online if anyone wants to take this further (maybe integrate it into Shutter, if the maintainer reads this..)