1. 06 Apr, 2009 1 commit
    • Kim Kyuwon's avatar
      leds: add BD2802GU LED driver · 0b56129b
      Kim Kyuwon authored
      ROHM BD2802GU is a RGB LED controller attached to i2c bus and specifically
      engineered for decoration purposes.  This RGB controller incorporates
      lighting patterns and illuminates.
      This driver is designed to minimize power consumption, so when there is no
      emitting LED, it enters to reset state.  And because the BD2802GU has lots
      of features that can't be covered by the current LED framework, it
      provides Advanced Configuration Function(ADF) mode, so that user
      applications can set registers of BD2802GU directly.
      Here are basic usage examples :
      ; to turn on LED (not blink)
      $ echo 1 > /sys/class/leds/led1_R/brightness
      ; to blink LED
      $ echo timer > /sys/class/leds/led1_R/trigger
      $ echo 1 > /sys/class/leds/led1_R/delay_on
      $ echo 1 > /sys/class/leds/led1_R/delay_off
      ; to turn off LED
      $ echo 0 > /sys/class/leds/led1_R/brightness
      [akpm@linux-foundation.org: coding-style fixes]
      Signed-off-by: default avatarKim Kyuwon <chammoru@gmail.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>