Reading /sys/class/leds/<led>/trigger returns all available LED triggers. However, this violates the "one value per file" rule of sysfs. This series provides a new /sys/devices/virtual/led-trigger/ directory and /sys/class/leds/<led>/current-trigger. The new api follows the "one value per file" rule of sysfs. This series was previously developed as a part of the series "leds: fix /sys/class/leds/<led>/trigger and add new api" [1]. Now this version only contains the new api part. [1] https://lore.kernel.org/r/1567946472-10075-1-git-send-email-akinobu.mita@xxxxxxxxx Akinobu Mita (2): leds: add /sys/devices/virtual/led-trigger/ leds: add /sys/class/leds/<led>/current-trigger Documentation/ABI/testing/sysfs-class-led | 13 +++ .../ABI/testing/sysfs-devices-virtual-led-trigger | 8 ++ drivers/leds/led-class.c | 10 +++ drivers/leds/led-triggers.c | 95 +++++++++++++++++++++- drivers/leds/leds.h | 5 ++ include/linux/leds.h | 3 + 6 files changed, 130 insertions(+), 4 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-devices-virtual-led-trigger Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx> Cc: Jacek Anaszewski <jacek.anaszewski@xxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Dan Murphy <dmurphy@xxxxxx> -- 2.7.4
