Hi! > > > 1. set FLED1 brightness > > > # echo 1 > /sys/class/leds/white:flash1/flash_brightness > > > 2. enable FLED1 strobe > > > # echo 1 > /sys/class/leds/white:flash1/flash_strobe > > > 3 . turn off FLED1 strobe (just used to gaurantee the strobe mode > > > flash leds must be turned off) > > > # echo 0 > /sys/class/leds/white:flash1/flash_strobe > > > > I believe I'd preffer only exposing torch functionality in > > /sys/class/leds. .. strobe can be supported using v4l2 APIs. > > Actually having LED flash class without strobe is pointless. > If you looked at led_classdev_flash_register_ext() you would see that > it fails with uninitialized strobe_set op. And V4L2 API for strobing > flash calls strobe_set from LED flash class beneath. > > That was the idea behind LED and V4L2 flash API unification - there > is one hardware driver needed, the V4L2 Flash layer just takes over > control over it when needed. I agree that one driver is enough. But we should not need flash_strobe file in sysfs. Simply use V4L2 for that. Best regards, Pavel