N900 Hardware Flash Torch
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The driver is in drivers/media/video/adp1653.c | The driver is in drivers/media/video/adp1653.c | ||
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Revision as of 23:36, 14 December 2009
The flash torch on the n900 is a two LED flash, which has several modes. It can flash brightly for a maximum of .5s, with an LED current of no more than 320mA, or be in torch mode, at a current of no more than 50mA.
Exceeding these values may cause hardware damage.
It also contains a red indicator light, to indicate video is being recorded.
(See kernel source ./arch/arm/mach-omap2/board-rx51-camera.c for details)
The controls of the device are apparantly presented as video4linux ioctls related to the main camera device - /dev/video0 usually, and should show up in a suitable 'webcam' type viewer that cah show arbitrary video4linux controls.
The driver is in drivers/media/video/adp1653.c