90 lines · plain
1What: /sys/class/leds/<led>/flash_brightness2Date: March 20153KernelVersion: 4.04Contact: Jacek Anaszewski <j.anaszewski@samsung.com>5Description: read/write6 Set the brightness of this LED in the flash strobe mode, in7 microamperes. The file is created only for the flash LED devices8 that support setting flash brightness.9 10 The value is between 0 and11 /sys/class/leds/<led>/max_flash_brightness.12 13What: /sys/class/leds/<led>/max_flash_brightness14Date: March 201515KernelVersion: 4.016Contact: Jacek Anaszewski <j.anaszewski@samsung.com>17Description: read only18 Maximum brightness level for this LED in the flash strobe mode,19 in microamperes.20 21What: /sys/class/leds/<led>/flash_timeout22Date: March 201523KernelVersion: 4.024Contact: Jacek Anaszewski <j.anaszewski@samsung.com>25Description: read/write26 Hardware timeout for flash, in microseconds. The flash strobe27 is stopped after this period of time has passed from the start28 of the strobe. The file is created only for the flash LED29 devices that support setting flash timeout.30 31What: /sys/class/leds/<led>/max_flash_timeout32Date: March 201533KernelVersion: 4.034Contact: Jacek Anaszewski <j.anaszewski@samsung.com>35Description: read only36 Maximum flash timeout for this LED, in microseconds.37 38What: /sys/class/leds/<led>/flash_strobe39Date: March 201540KernelVersion: 4.041Contact: Jacek Anaszewski <j.anaszewski@samsung.com>42Description: read/write43 Flash strobe state. When written with 1 it triggers flash strobe44 and when written with 0 it turns the flash off.45 46 On read 1 means that flash is currently strobing and 0 means47 that flash is off.48 49What: /sys/class/leds/<led>/flash_fault50Date: March 201551KernelVersion: 4.052Contact: Jacek Anaszewski <j.anaszewski@samsung.com>53Description: read only54 Space separated list of flash faults that may have occurred.55 Flash faults are re-read after strobing the flash. Possible56 flash faults:57 58 * led-over-voltage59 flash controller voltage to the flash LED60 has exceeded the limit specific to the flash controller61 * flash-timeout-exceeded62 the flash strobe was still on when63 the timeout set by the user has expired; not all flash64 controllers may set this in all such conditions65 * controller-over-temperature66 the flash controller has67 overheated68 * controller-short-circuit69 the short circuit protection70 of the flash controller has been triggered71 * led-power-supply-over-current72 current in the LED power73 supply has exceeded the limit specific to the flash74 controller75 * indicator-led-fault76 the flash controller has detected77 a short or open circuit condition on the indicator LED78 * led-under-voltage79 flash controller voltage to the flash80 LED has been below the minimum limit specific to81 the flash82 * controller-under-voltage83 the input voltage of the flash84 controller is below the limit under which strobing the85 flash at full current will not be possible;86 the condition persists until this flag is no longer set87 * led-over-temperature88 the temperature of the LED has exceeded89 its allowed upper limit90